fix: Add restitution to Ball

packages/pinball_components/lib/pinball_components.dart

@@ -1,4 +1,5 @@
 library pinball_components;
 
 export 'gen/gen.dart';
-export 'src/pinball_components.dart';
+export 'src/components/components.dart';
+export 'src/extensions/extensions.dart';

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

@@ -66,7 +66,13 @@ class Ball extends BodyComponent with Layered, InitialPosition, ZIndex {
       bullet: true,
     );
 
-    return world.createBody(bodyDef)..createFixtureFromShape(shape, 1);
+    final fixtureDef = FixtureDef(
+      shape,
+      restitution: 0.35,
+      density: 1,
+    );
+
+    return world.createBody(bodyDef)..createFixture(fixtureDef);
   }
 
   /// Immediately and completely [stop]s the ball.

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

@@ -1,9 +1,9 @@
 import 'dart:math' as math;
+
 import 'package:flame/components.dart';
 import 'package:flutter/material.dart';
-import 'package:pinball_components/gen/assets.gen.dart';
+import 'package:pinball_components/pinball_components.dart';
 import 'package:pinball_components/src/components/multiball/behaviors/behaviors.dart';
-import 'package:pinball_components/src/pinball_components.dart';
 import 'package:pinball_flame/pinball_flame.dart';
 
 export 'cubit/multiball_cubit.dart';

packages/pinball_components/lib/src/pinball_components.dart

@@ -1,2 +0,0 @@
-export 'components/components.dart';
-export 'extensions/extensions.dart';

packages/pinball_components/test/src/components/multiball/cubit/multiball_state_test.dart

@@ -1,7 +1,7 @@
 // ignore_for_file: prefer_const_constructors
 
 import 'package:flutter_test/flutter_test.dart';
-import 'package:pinball_components/src/pinball_components.dart';
+import 'package:pinball_components/pinball_components.dart';
 
 void main() {
   group('MultiballState', () {

packages/pinball_components/test/src/components/multiplier/cubit/multiplier_state_test.dart

@@ -1,7 +1,7 @@
 // ignore_for_file: prefer_const_constructors
 
 import 'package:flutter_test/flutter_test.dart';
-import 'package:pinball_components/src/pinball_components.dart';
+import 'package:pinball_components/pinball_components.dart';
 
 void main() {
   group('MultiplierState', () {