[FEATURE] Notification configuration should accept a fully qualified activity name

[ptsekov]

Is your feature request related to a problem? Please describe. When setting up player status notification on Android the code assumes that the activity which will handle clicks on the notification area lives in the same module namespace as the application id.

Describe the solution you'd like Allow a fully qualified activity name to be passed when configuring player status notification

Describe alternatives you've considered None

Additional context I am attaching a simple patch which which allows both a relative and fully qualified activity name to be passed

[ptsekov]

better_player__Allow_passing_a_fully_qualified_activity_name_to_handle_player_notification.patch.txt