[firebase_analytics]: class FirebaseAnalyticsObserver

[deepak786]

Why this class FirebaseAnalyticsObserver is removed from the package firebase_analytics https://pub.dev/packages/firebase_analytics/changelog#900?

People are already using this class as a navigator observer to log the ScreenView event.

[deepak786]

Internally the team decided to put it back and there is already a PR #7529 to reinstate this class

[deepak786]

This is resolved in version firebase_analytics: 9.0.3.