[firebase_analytics] setCurrentScreen should allow extra parameters

[muccy]

In this moment the method setCurrentScreen allows only to pass the screen name. It would be useful to allow passing also extra parameters.

The current implementation (see:

flutterfire/packages/firebase_analytics/firebase_analytics_platform_interface/lib/src/method_channel/method_channel_firebase_analytics.dart

Line 127 in 7132d77

Future<void> setCurrentScreen({

) seems to allow merging an extra map of parameters in here.