navigation library Null safety

Classes

AppRoute
AppRouteFinalizer<T extends AppRoute>
ExternalPageRequestReceived
InitialPagePushed
The Bloc entity that receives BlocEvent sent through the add function and emits BlocState depending on the current configuration
A basic implementation of RouterDelegate that supports NavigationBloc state stream and updates the Navigator wigdget properly
Page404Requested
PagePopped
PagePoppedUntilRoute
PagePushed
PagePushedAsFirst