chore: minor changes at test and doc

packages/pinball_components/lib/src/components/rocket.dart

@@ -6,8 +6,6 @@ import 'package:pinball_components/pinball_components.dart' hide Assets;
 /// A [SpriteComponent] for the rocket over [Plunger].
 /// {@endtemplate}
 class RocketSpriteComponent extends SpriteComponent with HasGameRef {
-  // TODO(ruimiguel): change this priority to be over launcher ramp and bottom
-  // wall.
   /// {@macro rocket_sprite_component}
   RocketSpriteComponent()
       : super(

packages/pinball_components/test/src/components/rocket_test.dart

@@ -21,8 +21,9 @@ void main() {
         await game.images.loadAll(assets);
         await game.ensureAdd(RocketSpriteComponent());
 
-        game.camera.followVector2(Vector2.zero());
-        game.camera.zoom = 8;
+        game.camera
+          ..followVector2(Vector2.zero())
+          ..zoom = 8;
 
         await tester.pump();
       },