fix: update widgets

lib/game/view/pinball_game_page.dart

@@ -44,6 +44,8 @@ class PinballGamePage extends StatelessWidget {
       ...game.preLoadAssets(),
       pinballAudio.load(),
       ...BonusAnimation.loadAssets(),
+      ...SelectedCharacter.loadAssets(),
+      ...StarAnimation.loadAssets(),
     ];
 
     return MultiBlocProvider(

lib/select_character/widgets/selected_character.dart

@@ -88,6 +88,7 @@ class _SelectedCharacterState extends State<SelectedCharacter>
             Text(
               currentCharacter.name,
               style: AppTextStyle.headline3,
+              textAlign: TextAlign.center,
             ),
             const SizedBox(height: 20),
             SizedBox(

lib/select_character/widgets/star_animation.dart

@@ -61,14 +61,14 @@ class StarAnimation extends StatelessWidget {
   final double _stepTime;
 
   /// Returns a list of assets to be loaded.
-  static Future<void> loadAssets() {
+  static List<Future> loadAssets() {
     Flame.images.prefix = '';
 
-    return Flame.images.loadAll([
-      Assets.images.selectCharacter.starA.keyName,
-      Assets.images.selectCharacter.starB.keyName,
-      Assets.images.selectCharacter.starC.keyName,
-    ]);
+    return [
+      Flame.images.load(Assets.images.selectCharacter.starA.keyName),
+      Flame.images.load(Assets.images.selectCharacter.starB.keyName),
+      Flame.images.load(Assets.images.selectCharacter.starC.keyName),
+    ];
   }
 
   @override