ci(mobile): add path filter and auto-submit to Apple for EAS workflow

- Add paths filter so builds only trigger when mobile/ files change
- Add submit_ios job to automatically submit iOS builds to App Store Connect
- Update docs/MobileApp.md and mobile/README.md with CI/CD documentation

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

mobile/.eas/workflows/create-builds.yml

@@ -1,9 +1,11 @@
-name: Create builds
+name: Build and submit
 
 on:
   push:
     branches:
       - main
+    paths:
+      - mobile/**
 
 jobs:
   build_android:
@@ -27,3 +29,10 @@ jobs:
     params:
       platform: ios
       profile: production
+
+  submit_ios:
+    name: Submit iOS to App Store Connect
+    needs: [build_ios]
+    type: submit
+    params:
+      build_id: ${{ needs.build_ios.outputs.build_id }}