This commit integrates Firebase Authentication into the application and refactors the `main.dart` file to streamline the user authentication flow. The application will now automatically switch between the main layout and the authentication UI based on the user's sign-in status.
- Added Firebase initialization to the `main()` function for Firebase Authentication.
- Replaced the home page in `MyApp` with a `StreamBuilder` that listens for Firebase auth state changes.
- Based on the auth state, the home page will either show `MainLayout` (if the user is signed in) or `FirebaseAuthView` (if the user is not signed in).
- Added necessary imports for the Firebase and authentication services.
This commit integrates the `BenchmarkService` into the main application setup through the `MultiProvider` in `main.dart`. The changes include:
1. Adding `BenchmarkService` to the list of service providers, allowing it to be accessible throughout the application via dependency injection.
2. Using `ProxyProvider` to ensure `BenchmarkService` gets the `RestApiUtility` instance as a dependency.
3. Modifying the `MyApp` class to fetch the `BenchmarkService` from the provider, making it ready for use in the application's lifecycle.
This addition allows `BenchmarkService` to be centrally managed and readily available for any part of the application that requires benchmark-related functionalities.
