updating devcontainer to periodically run 'git fetch'

Author: EMaher

.devcontainer/devcontainer.json

@@ -15,6 +15,7 @@
     "vscode": {
       "settings": {
         "terminal.integrated.defaultProfile.linux": "bash",
+        "git.autofetch": true,
         "editor.formatOnSave": true,
         "editor.defaultFormatter": "dbaeumer.vscode-eslint",
         "eslint.format.enable": true,