adding FlameBloc to the PinballGame

lib/game/pinball_game.dart

@@ -1,3 +1,4 @@
+import 'package:flame_bloc/flame_bloc.dart';
 import 'package:flame_forge2d/forge2d_game.dart';
 
-class PinballGame extends Forge2DGame {}
+class PinballGame extends Forge2DGame with FlameBloc {}