refactor: adjusted Kicker constructor

lib/game/components/bottom_group.dart

@@ -50,7 +50,6 @@ class _BottomGroupSide extends Component {
       );
     final kicker = Kicker(
       side: _side,
-      bloc: KickerCubit(),
       children: [
         ScoringBehavior(points: 5000)..applyTo(['bouncy_edge']),
       ],

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

@@ -21,6 +21,15 @@ export 'cubit/kicker_cubit.dart';
 class Kicker extends BodyComponent with InitialPosition {
   /// {@macro kicker}
   Kicker({
+    required BoardSide side,
+    Iterable<Component>? children,
+  }) : this._(
+          side: side,
+          bloc: KickerCubit(),
+          children: children,
+        );
+
+  Kicker._({
     required BoardSide side,
     required this.bloc,
     Iterable<Component>? children,
@@ -47,7 +56,8 @@ class Kicker extends BodyComponent with InitialPosition {
   @visibleForTesting
   Kicker.test({
     required this.bloc,
-  }) : _side = BoardSide.left;
+    required BoardSide side,
+  }) : _side = side;
 
   // TODO(alestiago): Consider refactoring once the following is merged:
   // https://github.com/flame-engine/flame/pull/1538

packages/pinball_components/sandbox/lib/stories/bottom_group/kicker_game.dart

@@ -27,9 +27,9 @@ class KickerGame extends BallGame {
     final center = screenToWorld(camera.viewport.canvasSize! / 2);
     await addAll(
       [
-        Kicker(side: BoardSide.left, bloc: KickerCubit())
+        Kicker(side: BoardSide.left)
           ..initialPosition = Vector2(center.x - 8.8, center.y),
-        Kicker(side: BoardSide.right, bloc: KickerCubit())
+        Kicker(side: BoardSide.right)
           ..initialPosition = Vector2(center.x + 8.8, center.y),
       ],
     );

packages/pinball_components/test/src/components/kicker/behaviors/kicker_ball_contact_behavior_test.dart

@@ -34,7 +34,10 @@ void main() {
             initialState: KickerState.lit,
           );
 
-          final kicker = Kicker.test(bloc: bloc);
+          final kicker = Kicker.test(
+            side: BoardSide.left,
+            bloc: bloc,
+          );
           await kicker.add(behavior);
           await game.ensureAdd(kicker);
 

packages/pinball_components/test/src/components/kicker/behaviors/kicker_blinking_behavior_test.dart

@@ -28,7 +28,10 @@ void main() {
             initialState: KickerState.lit,
           );
 
-          final kicker = Kicker.test(bloc: bloc);
+          final kicker = Kicker.test(
+            side: BoardSide.left,
+            bloc: bloc,
+          );
           await kicker.add(behavior);
           await game.ensureAdd(kicker);
 

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

@@ -27,11 +27,11 @@ void main() {
         await game.images.loadAll(assets);
         final leftKicker = Kicker(
           side: BoardSide.left,
-          bloc: KickerCubit(),
+        )
-        )..initialPosition = Vector2(-20, 0);
+          ..initialPosition = Vector2(-20, 0)
+          ..renderBody = false;
         final rightKicker = Kicker(
           side: BoardSide.right,
-          bloc: KickerCubit(),
         )..initialPosition = Vector2(20, 0);
 
         await game.ensureAddAll([leftKicker, rightKicker]);
@@ -49,7 +49,7 @@ void main() {
     flameTester.test(
       'loads correctly',
       (game) async {
-        final kicker = Kicker(
+        final kicker = Kicker.test(
           side: BoardSide.left,
           bloc: KickerCubit(),
         );
@@ -70,7 +70,10 @@ void main() {
         initialState: KickerState.lit,
       );
       when(bloc.close).thenAnswer((_) async {});
-      final kicker = Kicker.test(bloc: bloc);
+      final kicker = Kicker.test(
+        side: BoardSide.left,
+        bloc: bloc,
+      );
 
       await game.ensureAdd(kicker);
       game.remove(kicker);
@@ -85,7 +88,6 @@ void main() {
         final kicker = Kicker(
           side: BoardSide.left,
           children: [component],
-          bloc: KickerCubit(),
         );
         await game.ensureAdd(kicker);
         expect(kicker.children, contains(component));
@@ -94,7 +96,6 @@ void main() {
       flameTester.test('a BumpingBehavior', (game) async {
         final kicker = Kicker(
           side: BoardSide.left,
-          bloc: KickerCubit(),
         );
         await game.ensureAdd(kicker);
         expect(
@@ -106,7 +107,6 @@ void main() {
       flameTester.test('a KickerBallContactBehavior', (game) async {
         final kicker = Kicker(
           side: BoardSide.left,
-          bloc: KickerCubit(),
         );
         await game.ensureAdd(kicker);
         expect(
@@ -118,7 +118,6 @@ void main() {
       flameTester.test('a KickerBlinkingBehavior', (game) async {
         final kicker = Kicker(
           side: BoardSide.left,
-          bloc: KickerCubit(),
         );
         await game.ensureAdd(kicker);
         expect(