Fix Firebase Errors in Ionic APK

I need assistance with an Ionic project that's already been created. I'm encountering some issues with the Firebase integration, specifically with Firestore.

- Issues: Compilation errors when trying to import Firebase as webfirestore
- Errors occurring in the Firebase section
- Project needs to be compiled into an APK

Ideal candidates for this project are freelance developers with experience in:
- Ionic Framework
- Firebase (particularly Firestore)
- Android APK creation from Ionic projects

Please note that I prefer to work on screen sharing to ensure smooth communication and real-time collaboration. Let's fix this project together!