fix: moved camera to center

packages/pinball_components/sandbox/lib/stories/flutter_forest/big_dash_nest_bumper_game.dart

@@ -1,5 +1,6 @@
 import 'dart:async';
 
+import 'package:flame_forge2d/flame_forge2d.dart';
 import 'package:pinball_components/pinball_components.dart';
 import 'package:sandbox/common/common.dart';
 import 'package:sandbox/stories/ball/basic_ball_game.dart';
@@ -23,6 +24,7 @@ class BigDashNestBumperGame extends BallGame with Traceable {
   Future<void> onLoad() async {
     await super.onLoad();
 
+    camera.followVector2(Vector2.zero());
     await add(
       DashNestBumper.main()..priority = 1,
     );