refactor: used Forge2DGame where possible

test/game/components/ball_test.dart

@@ -11,10 +11,9 @@ import '../../helpers/helpers.dart';
 
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
+  final flameTester = FlameTester(PinballGameTest.create);
 
   group('Ball', () {
-    final flameTester = FlameTester(PinballGameTest.create);
-
     flameTester.test(
       'loads correctly',
       (game) async {

test/game/components/baseboard_test.dart

@@ -5,12 +5,10 @@ import 'package:flame_test/flame_test.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:pinball/game/game.dart';
 
-import '../../helpers/helpers.dart';
-
 void main() {
   group('Baseboard', () {
     TestWidgetsFlutterBinding.ensureInitialized();
-    final flameTester = FlameTester(PinballGameTest.create);
+    final flameTester = FlameTester(Forge2DGame.new);
 
     flameTester.test(
       'loads correctly',

test/game/components/bonus_word_test.dart

@@ -12,10 +12,9 @@ import '../../helpers/helpers.dart';
 
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
+  final flameTester = FlameTester(PinballGameTest.create);
 
   group('BonusWord', () {
-    final flameTester = FlameTester(PinballGameTest.create);
-
     flameTester.test(
       'loads the letters correctly',
       (game) async {

test/game/components/flipper_test.dart

@@ -176,6 +176,7 @@ void main() {
             final flipper = Flipper.left(position: Vector2.zero());
             final ball = Ball(position: Vector2.zero());
 
+            await game.ready();
             await game.ensureAddAll([flipper, ball]);
 
             expect(

test/game/components/joint_anchor_test.dart

@@ -5,14 +5,11 @@ import 'package:flame_test/flame_test.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:pinball/game/game.dart';
 
-import '../../helpers/helpers.dart';
-
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
+  final flameTester = FlameTester(Forge2DGame.new);
 
   group('JointAnchor', () {
-    final flameTester = FlameTester(PinballGameTest.create);
-
     flameTester.test(
       'loads correctly',
       (game) async {

test/game/components/pathway_test.dart

@@ -6,11 +6,9 @@ import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:pinball/game/game.dart';
 
-import '../../helpers/helpers.dart';
-
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
-  final flameTester = FlameTester(PinballGameTest.create);
+  final flameTester = FlameTester(Forge2DGame.new);
 
   group('Pathway', () {
     const width = 50.0;

test/game/components/plunger_test.dart

@@ -13,7 +13,7 @@ import '../../helpers/helpers.dart';
 
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
-  final flameTester = FlameTester(PinballGameTest.create);
+  final flameTester = FlameTester(Forge2DGame.new);
 
   group('Plunger', () {
     const compressionDistance = 0.0;

test/game/components/wall_test.dart

@@ -10,6 +10,7 @@ import '../../helpers/helpers.dart';
 
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
+  final flameTester = FlameTester(Forge2DGame.new);
 
   group('Wall', () {
     group('BottomWallBallContactCallback', () {
@@ -32,7 +33,6 @@ void main() {
         },
       );
     });
-    final flameTester = FlameTester(PinballGameTest.create);
 
     flameTester.test(
       'loads correctly',