Add TypeScript definitions to "package.json" for "react-native-tracker" (#1453)

### Issue:

When importing `@snowplow/react-native-tracker`, we got the following error:

```
This result could not be resolved under your current 'moduleResolution' setting. Consider updating to 'node16', 'nodenext', or 'bundler'.
```

Changing the "moduleResolution" to "node16" fixes this issue, but breaks part of our build pipeline.

### Similar issue:

snowplow/snowplow-react-native-tracker#217

---------

Co-authored-by: Naoufal ElYoussoufi <[email protected]>

Author: matus-tomlein

common/changes/@snowplow/react-native-tracker/fix-react_native_tracker_types_2025-10-07-13-25.json

@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@snowplow/react-native-tracker",
+      "comment": "Add TypeScript definitions to \"package.json\" for \"react-native-tracker\"",
+      "type": "none"
+    }
+  ],
+  "packageName": "@snowplow/react-native-tracker"
+}

trackers/react-native-tracker/package.json

@@ -23,6 +23,7 @@
   "source": "./src/index.tsx",
   "main": "./dist/commonjs/index.js",
   "module": "./dist/module/index.js",
+  "types": "./dist/typescript/module/src/index.d.ts",
   "exports": {
     ".": {
       "import": {