* [PS-1312] Updated Android Target and Framework to Android12 and updated new SplashScreen for Android12
* PS-1312 Changed PendingIntents mutability
* PS-1312 Removed unused imports
* PS-1312 Added method to helper to add mutability option according to Android version
* PS-1312 Renamed helper method AddPendingIntentMutability and fixed validation
* PS-1312 Improved PendingIntentMutability method from helper readability and naming