diff --git a/package-lock.json b/package-lock.json
index 2fb1ee8..8769c14 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -853,6 +853,66 @@
         "@firebase/app-types": "0.4.9"
       }
     },
+    "@firebase/firestore": {
+      "version": "1.18.0",
+      "resolved": "https://registry.npmjs.org/@firebase/firestore/-/firestore-1.18.0.tgz",
+      "integrity": "sha512-maMq4ltkrwjDRusR2nt0qS4wldHQMp+0IDSfXIjC+SNmjnWY/t/+Skn9U3Po+dB38xpz3i7nsKbs+8utpDnPSw==",
+      "requires": {
+        "@firebase/component": "0.1.19",
+        "@firebase/firestore-types": "1.14.0",
+        "@firebase/logger": "0.2.6",
+        "@firebase/util": "0.3.2",
+        "@firebase/webchannel-wrapper": "0.4.0",
+        "@grpc/grpc-js": "^1.0.0",
+        "@grpc/proto-loader": "^0.5.0",
+        "node-fetch": "2.6.1",
+        "tslib": "^1.11.1"
+      },
+      "dependencies": {
+        "@firebase/component": {
+          "version": "0.1.19",
+          "resolved": "https://registry.npmjs.org/@firebase/component/-/component-0.1.19.tgz",
+          "integrity": "sha512-L0S3g8eqaerg8y0zox3oOHSTwn/FE8RbcRHiurnbESvDViZtP5S5WnhuAPd7FnFxa8ElWK0z1Tr3ikzWDv1xdQ==",
+          "requires": {
+            "@firebase/util": "0.3.2",
+            "tslib": "^1.11.1"
+          }
+        },
+        "@firebase/firestore-types": {
+          "version": "1.14.0",
+          "resolved": "https://registry.npmjs.org/@firebase/firestore-types/-/firestore-types-1.14.0.tgz",
+          "integrity": "sha512-WF8IBwHzZDhwyOgQnmB0pheVrLNP78A8PGxk1nxb/Nrgh1amo4/zYvFMGgSsTeaQK37xMYS/g7eS948te/dJxw=="
+        },
+        "@firebase/logger": {
+          "version": "0.2.6",
+          "resolved": "https://registry.npmjs.org/@firebase/logger/-/logger-0.2.6.tgz",
+          "integrity": "sha512-KIxcUvW/cRGWlzK9Vd2KB864HlUnCfdTH0taHE0sXW5Xl7+W68suaeau1oKNEqmc3l45azkd4NzXTCWZRZdXrw=="
+        },
+        "@firebase/util": {
+          "version": "0.3.2",
+          "resolved": "https://registry.npmjs.org/@firebase/util/-/util-0.3.2.tgz",
+          "integrity": "sha512-Dqs00++c8rwKky6KCKLLY2T1qYO4Q+X5t+lF7DInXDNF4ae1Oau35bkD+OpJ9u7l1pEv7KHowP6CUKuySCOc8g==",
+          "requires": {
+            "tslib": "^1.11.1"
+          }
+        },
+        "@firebase/webchannel-wrapper": {
+          "version": "0.4.0",
+          "resolved": "https://registry.npmjs.org/@firebase/webchannel-wrapper/-/webchannel-wrapper-0.4.0.tgz",
+          "integrity": "sha512-8cUA/mg0S+BxIZ72TdZRsXKBP5n5uRcE3k29TZhZw6oIiHBt9JA7CTb/4pE1uKtE/q5NeTY2tBDcagoZ+1zjXQ=="
+        },
+        "node-fetch": {
+          "version": "2.6.1",
+          "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.1.tgz",
+          "integrity": "sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw=="
+        },
+        "tslib": {
+          "version": "1.14.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
+          "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg=="
+        }
+      }
+    },
     "@firebase/firestore-types": {
       "version": "1.8.1",
       "resolved": "https://registry.npmjs.org/@firebase/firestore-types/-/firestore-types-1.8.1.tgz",
@@ -1001,6 +1061,21 @@
       "resolved": "https://registry.npmjs.org/@firebase/webchannel-wrapper/-/webchannel-wrapper-0.2.33.tgz",
       "integrity": "sha512-xfYZ1Z2CY7YRUJzXRS+nR1HKhxmGItdmGl7SmhhpuX89MXiTP9zjoa65asdSwDwTfCK8vALvya5pl2ecbQAZQg=="
     },
+    "@grpc/grpc-js": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/@grpc/grpc-js/-/grpc-js-1.3.0.tgz",
+      "integrity": "sha512-fiL7ZaGg2HBiFtmv6m34d5jEgEtNXfctjzB3f7b3iuT7olBX4mHLMOqOBmGTTSOTfNRQJH5+vsyk6mEz3I0Q7Q==",
+      "requires": {
+        "@types/node": ">=12.12.47"
+      },
+      "dependencies": {
+        "@types/node": {
+          "version": "15.0.2",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-15.0.2.tgz",
+          "integrity": "sha512-p68+a+KoxpoB47015IeYZYRrdqMUcpbK8re/zpFB8Ld46LHC1lPEbp3EXgkEhAYEcPvjJF6ZO+869SQ0aH1dcA=="
+        }
+      }
+    },
     "@grpc/proto-loader": {
       "version": "0.5.3",
       "resolved": "https://registry.npmjs.org/@grpc/proto-loader/-/proto-loader-0.5.3.tgz",
@@ -1326,6 +1401,8 @@
     },
     "@react-native-community/eslint-config": {
       "version": "0.0.5",
+      "resolved": "https://registry.npmjs.org/@react-native-community/eslint-config/-/eslint-config-0.0.5.tgz",
+      "integrity": "sha512-jwO2tnKaTPTLX5XYXMHGEnFdf543SU7jz98/OF5mDH3b7lP+BOaCD+jVfqqHoDRkcqyPlYiR1CgwVGWpi0vMWg==",
       "dev": true,
       "requires": {
         "@typescript-eslint/eslint-plugin": "^1.5.0",
@@ -2934,6 +3011,8 @@
     },
     "eslint": {
       "version": "6.7.2",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-6.7.2.tgz",
+      "integrity": "sha512-qMlSWJaCSxDFr8fBPvJM9kJwbazrhNcBU3+DszDW1OlEwKBBRWsJc7NJFelvwQpanHCR14cOLD41x8Eqvo3Nng==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.0.0",
@@ -3552,6 +3631,8 @@
     },
     "firebase": {
       "version": "7.5.2",
+      "resolved": "https://registry.npmjs.org/firebase/-/firebase-7.5.2.tgz",
+      "integrity": "sha512-G1hJ59CoV/gdNulBAFKiGD8EIDKCeQS16tc3TQ/sBCb87urDuaYKv7/n/CgK8llSt+pWJjPc6U0F223zt0OdKA==",
       "requires": {
         "@firebase/analytics": "0.2.8",
         "@firebase/app": "0.4.26",
@@ -4730,27 +4811,23 @@
       "integrity": "sha1-BO93hiz/K7edMPdpIJWTAiK/YPE="
     },
     "handlebars": {
-      "version": "4.5.3",
-      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.5.3.tgz",
-      "integrity": "sha512-3yPecJoJHK/4c6aZhSvxOyG4vJKDshV36VHp0iVCDVh7o9w2vwi3NSnL2MMPj3YdduqaBcu7cGbggJQM0br9xA==",
+      "version": "4.7.7",
+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.7.7.tgz",
+      "integrity": "sha512-aAcXm5OAfE/8IXkcZvCepKU3VzW1/39Fb5ZuqMtgI/hT8X2YgoMvBY5dLhq/cpOvw7Lk1nK/UF71aLG/ZnVYRA==",
       "dev": true,
       "requires": {
+        "minimist": "^1.2.5",
         "neo-async": "^2.6.0",
-        "optimist": "^0.6.1",
         "source-map": "^0.6.1",
-        "uglify-js": "^3.1.4"
+        "uglify-js": "^3.1.4",
+        "wordwrap": "^1.0.0"
       },
       "dependencies": {
-        "uglify-js": {
-          "version": "3.7.2",
-          "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.7.2.tgz",
-          "integrity": "sha512-uhRwZcANNWVLrxLfNFEdltoPNhECUR3lc+UdJoG9CBpMcSnKyWA94tc3eAujB1GcMY5Uwq8ZMp4qWpxWYDQmaA==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "commander": "~2.20.3",
-            "source-map": "~0.6.1"
-          }
+        "minimist": {
+          "version": "1.2.5",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
+          "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==",
+          "dev": true
         }
       }
     },
@@ -5383,6 +5460,8 @@
     },
     "jest": {
       "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/jest/-/jest-24.9.0.tgz",
+      "integrity": "sha512-YvkBL1Zm7d2B1+h5fHEOdyjCG+sGMz4f8D86/0HiqJ6MB4MnDc8FgP5vdWsGnemOQro7lnYo8UakZ3+5A0jxGw==",
       "dev": true,
       "requires": {
         "import-local": "^2.0.0",
@@ -7094,6 +7173,8 @@
     },
     "node-pre-gyp": {
       "version": "0.14.0",
+      "resolved": "https://registry.npmjs.org/node-pre-gyp/-/node-pre-gyp-0.14.0.tgz",
+      "integrity": "sha512-+CvDC7ZttU/sSt9rFjix/P05iS43qHCOOGzcr3Ry99bXG7VX953+vFyEuph/tfqoYu8dttBkE86JSKBO2OzcxA==",
       "requires": {
         "detect-libc": "^1.0.2",
         "mkdirp": "^0.5.1",
@@ -7333,30 +7414,6 @@
         "is-wsl": "^1.1.0"
       }
     },
-    "optimist": {
-      "version": "0.6.1",
-      "resolved": "https://registry.npmjs.org/optimist/-/optimist-0.6.1.tgz",
-      "integrity": "sha1-2j6nRob6IaGaERwybpDrFaAZZoY=",
-      "dev": true,
-      "requires": {
-        "minimist": "~0.0.1",
-        "wordwrap": "~0.0.2"
-      },
-      "dependencies": {
-        "minimist": {
-          "version": "0.0.10",
-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz",
-          "integrity": "sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=",
-          "dev": true
-        },
-        "wordwrap": {
-          "version": "0.0.3",
-          "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
-          "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc=",
-          "dev": true
-        }
-      }
-    },
     "optionator": {
       "version": "0.8.3",
       "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.8.3.tgz",
@@ -7811,6 +7868,8 @@
     },
     "react": {
       "version": "16.9.0",
+      "resolved": "https://registry.npmjs.org/react/-/react-16.9.0.tgz",
+      "integrity": "sha512-+7LQnFBwkiw+BobzOF6N//BdoNw0ouwmSJTEm9cglOOmsg/TMiFHZLe2sEoN5M7LgJTj9oHH0gxklfnQe66S1w==",
       "requires": {
         "loose-envify": "^1.1.0",
         "object-assign": "^4.1.1",
@@ -7850,6 +7909,8 @@
     },
     "react-native": {
       "version": "0.61.5",
+      "resolved": "https://registry.npmjs.org/react-native/-/react-native-0.61.5.tgz",
+      "integrity": "sha512-MXqE3NoGO0T3dUKIKkIppijBhRRMpfN6ANbhMXHDuyfA+fSilRWgCwYgR/YNCC7ntECoJYikKaNTUBB0DeQy6Q==",
       "requires": {
         "@babel/runtime": "^7.0.0",
         "@react-native-community/cli": "^3.0.0",
@@ -8030,6 +8091,8 @@
     },
     "react-native-gesture-handler": {
       "version": "1.5.2",
+      "resolved": "https://registry.npmjs.org/react-native-gesture-handler/-/react-native-gesture-handler-1.5.2.tgz",
+      "integrity": "sha512-Xp03dq4XYVTD0xmWx4DW4eX+ox1NQLjHmbykspTdS5FCNIVIOekVXRLFCw1698/v8dYUHApNo6K3s3BCD8fqPA==",
       "requires": {
         "hammerjs": "^2.0.8",
         "hoist-non-react-statics": "^2.3.1",
@@ -8072,6 +8135,8 @@
     },
     "react-navigation": {
       "version": "4.0.10",
+      "resolved": "https://registry.npmjs.org/react-navigation/-/react-navigation-4.0.10.tgz",
+      "integrity": "sha512-7PqvmsdQ7HIyxPUMYbd9Uq//VoMdniEOLAOSvIhb/ExtbAt/1INSjUF+RiMWOMCWLTCNvNPRvTz7xy7qwWureg==",
       "requires": {
         "@react-navigation/core": "^3.5.1",
         "@react-navigation/native": "^3.6.2"
@@ -8079,6 +8144,8 @@
     },
     "react-navigation-stack": {
       "version": "1.10.3",
+      "resolved": "https://registry.npmjs.org/react-navigation-stack/-/react-navigation-stack-1.10.3.tgz",
+      "integrity": "sha512-1gksFi/g/Lg9sBhgLlD0OiEB5xnatHb4C0eNMA5tli9cTVlhq375XNPIqOiTyftibBmjdApAsZFj5srUCoOu/w==",
       "requires": {
         "prop-types": "^15.7.2"
       }
@@ -8090,6 +8157,8 @@
     },
     "react-test-renderer": {
       "version": "16.9.0",
+      "resolved": "https://registry.npmjs.org/react-test-renderer/-/react-test-renderer-16.9.0.tgz",
+      "integrity": "sha512-R62stB73qZyhrJo7wmCW9jgl/07ai+YzvouvCXIJLBkRlRqLx4j9RqcLEAfNfU3OxTGucqR2Whmn3/Aad6L3hQ==",
       "dev": true,
       "requires": {
         "object-assign": "^4.1.1",
@@ -9231,6 +9300,13 @@
         }
       }
     },
+    "uglify-js": {
+      "version": "3.13.5",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.13.5.tgz",
+      "integrity": "sha512-xtB8yEqIkn7zmOyS2zUNBsYCBRhDkvlNxMMY2smuJ/qA8NCHeQvKCF3i9Z4k8FJH4+PJvZRtMrPynfZ75+CSZw==",
+      "dev": true,
+      "optional": true
+    },
     "ultron": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.0.2.tgz",
diff --git a/yarn.lock b/yarn.lock
index be89a6c..ab0deea 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2138,7 +2138,7 @@ command-exists@^1.2.8:
   resolved "https://registry.yarnpkg.com/command-exists/-/command-exists-1.2.8.tgz#715acefdd1223b9c9b37110a149c6392c2852291"
   integrity sha512-PM54PkseWbiiD/mMsbvW351/u+dafwTJ0ye2qB60G1aGQP9j3xK2gmMDc+R34L3nDtx4qMCitXT75mkbkGJDLw==
 
-commander@^2.19.0, commander@~2.20.3:
+commander@^2.19.0:
   version "2.20.3"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.3.tgz#fd485e84c03eb4881c20722ba48035e8531aeb33"
   integrity sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==
@@ -3286,13 +3286,14 @@ hammerjs@^2.0.8:
   integrity sha1-BO93hiz/K7edMPdpIJWTAiK/YPE=
 
 handlebars@^4.1.2:
-  version "4.5.3"
-  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.5.3.tgz#5cf75bd8714f7605713511a56be7c349becb0482"
-  integrity sha512-3yPecJoJHK/4c6aZhSvxOyG4vJKDshV36VHp0iVCDVh7o9w2vwi3NSnL2MMPj3YdduqaBcu7cGbggJQM0br9xA==
+  version "4.7.7"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.7.7.tgz#9ce33416aad02dbd6c8fafa8240d5d98004945a1"
+  integrity sha512-aAcXm5OAfE/8IXkcZvCepKU3VzW1/39Fb5ZuqMtgI/hT8X2YgoMvBY5dLhq/cpOvw7Lk1nK/UF71aLG/ZnVYRA==
   dependencies:
+    minimist "^1.2.5"
     neo-async "^2.6.0"
-    optimist "^0.6.1"
     source-map "^0.6.1"
+    wordwrap "^1.0.0"
   optionalDependencies:
     uglify-js "^3.1.4"
 
@@ -4862,15 +4863,10 @@ minimist@0.0.8:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
   integrity sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=
 
-minimist@^1.1.1, minimist@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
-  integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
-
-minimist@~0.0.1:
-  version "0.0.10"
-  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
-  integrity sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=
+minimist@^1.1.1, minimist@^1.2.0, minimist@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
+  integrity sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==
 
 minipass@^2.6.0, minipass@^2.8.6, minipass@^2.9.0:
   version "2.9.0"
@@ -4980,9 +4976,9 @@ negotiator@0.6.2:
   integrity sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw==
 
 neo-async@^2.6.0:
-  version "2.6.1"
-  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.1.tgz#ac27ada66167fa8849a6addd837f6b189ad2081c"
-  integrity sha512-iyam8fBuCUpWeKPGpaNMetEocMt364qkCsfL9JuhjXX6dRnguRVOfk2GZaDpPjcOKiiXCPINZC1GczQ7iTq3Zw==
+  version "2.6.2"
+  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.2.tgz#b4aafb93e3aeb2d8174ca53cf163ab7d7308305f"
+  integrity sha512-Yd3UES5mWCSqR+qNT93S3UoYUkqAZ9lLg8a7g9rimsWmYGK8cVToA4/sF3RrshdyV3sAGMXVUmpMYOw+dLpOuw==
 
 nice-try@^1.0.4:
   version "1.0.5"
@@ -5241,14 +5237,6 @@ open@^6.2.0:
   dependencies:
     is-wsl "^1.1.0"
 
-optimist@^0.6.1:
-  version "0.6.1"
-  resolved "https://registry.yarnpkg.com/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"
-  integrity sha1-2j6nRob6IaGaERwybpDrFaAZZoY=
-  dependencies:
-    minimist "~0.0.1"
-    wordwrap "~0.0.2"
-
 optionator@^0.8.1, optionator@^0.8.3:
   version "0.8.3"
   resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.8.3.tgz#84fa1d036fe9d3c7e21d99884b601167ec8fb495"
@@ -6828,12 +6816,9 @@ uglify-es@^3.1.9:
     source-map "~0.6.1"
 
 uglify-js@^3.1.4:
-  version "3.7.1"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.7.1.tgz#35c7de17971a4aa7689cd2eae0a5b39bb838c0c5"
-  integrity sha512-pnOF7jY82wdIhATVn87uUY/FHU+MDUdPLkmGFvGoclQmeu229eTkbG5gjGGBi3R7UuYYSEeYXY/TTY5j2aym2g==
-  dependencies:
-    commander "~2.20.3"
-    source-map "~0.6.1"
+  version "3.13.5"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.13.5.tgz#5d71d6dbba64cf441f32929b1efce7365bb4f113"
+  integrity sha512-xtB8yEqIkn7zmOyS2zUNBsYCBRhDkvlNxMMY2smuJ/qA8NCHeQvKCF3i9Z4k8FJH4+PJvZRtMrPynfZ75+CSZw==
 
 ultron@1.0.x:
   version "1.0.2"
@@ -7082,11 +7067,6 @@ wordwrap@^1.0.0:
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
   integrity sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=
 
-wordwrap@~0.0.2:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
-  integrity sha1-o9XabNXAvAAI03I0u68b7WMFkQc=
-
 wrap-ansi@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"