refactor(sanbox): rephrased descriptions

packages/pinball_components/sandbox/lib/stories/ball/ball_booster.dart

@@ -4,7 +4,11 @@ import 'package:pinball_components/pinball_components.dart';
 import 'package:sandbox/common/common.dart';
 
 class BallBoosterExample extends LineGame {
-  static const info = '';
+  static const info = '''
+  Shows how a Ball with a boost works.
+
+  Drag to launch a boosted Ball.
+''';
 
   @override
   void onLine(Vector2 line) {

packages/pinball_components/sandbox/lib/stories/ball/basic.dart

@@ -7,7 +7,7 @@ class BasicBallGame extends BasicGame with TapDetector {
   BasicBallGame({required this.color});
 
   static const info = '''
-      Basic example of how a Ball works.
+      Shows how a Ball works.
       
       Tap anywhere on the screen to spawn a ball into the game.
 ''';

packages/pinball_components/sandbox/lib/stories/baseboard/basic.dart

@@ -3,9 +3,7 @@ import 'package:pinball_components/pinball_components.dart';
 import 'package:sandbox/common/common.dart';
 
 class BasicBaseboardGame extends BasicGame {
-  static const info = '''
-      Basic example of how a Baseboard works.
-''';
+  static const info = 'Shows how a Baseboard works.';
 
   @override
   Future<void> onLoad() async {

packages/pinball_components/sandbox/lib/stories/chrome_dino/chrome_dino_game.dart

@@ -2,9 +2,7 @@ import 'package:flame_forge2d/flame_forge2d.dart';
 import 'package:pinball_components/pinball_components.dart';
 
 class ChromeDinoGame extends Forge2DGame {
-  static const info = '''
-  Shows how a ChromeDino is rendered.
-''';
+  static const info = 'Shows how a ChromeDino is rendered.';
 
   @override
   Future<void> onLoad() async {

packages/pinball_components/sandbox/lib/stories/dash_nest_bumper/big.dart

@@ -13,7 +13,7 @@ class BigDashNestBumperGame extends BasicBallGame {
   static const info = '''
       Shows how a BigDashNestBumper is rendered.
 
-      Activate the trace to see the body shape.
+      Activate the "trace" parameter to overlay the body.
 ''';
 
   final bool trace;

packages/pinball_components/sandbox/lib/stories/effects/fire_effect.dart

@@ -3,8 +3,11 @@ import 'package:pinball_components/pinball_components.dart';
 import 'package:sandbox/common/common.dart';
 
 class FireEffectExample extends LineGame {
-  static const info = 'Demonstrate the fire trail effect '
-      'drag a line to define the trail direction';
+  static const info = '''
+  Shows how the FireEffect renders.
+
+  Drag a line to define the trail direction.
+''';
 
   @override
   void onLine(Vector2 line) {

packages/pinball_components/sandbox/lib/stories/flipper/basic.dart

@@ -8,9 +8,7 @@ import 'package:sandbox/stories/ball/basic.dart';
 class BasicFlipperGame extends BasicBallGame with KeyboardEvents {
   BasicFlipperGame() : super(color: Colors.blue);
 
-  static const info = '''
-      Basic example of how a Flipper works.
-''';
+  static const info = 'Shows how a Flipper works.';
 
   static const _leftFlipperKeys = [
     LogicalKeyboardKey.arrowLeft,

packages/pinball_components/sandbox/lib/stories/layer/basic.dart

@@ -8,9 +8,9 @@ class BasicLayerGame extends BasicGame with TapDetector {
   BasicLayerGame({required this.color});
 
   static const info = '''
-      Basic example of how layers work when a Ball hits other components.
+      Shows how Layers work when a Ball hits other components.
       
-      Tap anywhere on the screen to spawn a ball into the game.
+      Tap anywhere on the screen to spawn a Ball into the game.
 ''';
 
   final Color color;

packages/pinball_components/sandbox/lib/stories/spaceship/basic.dart

@@ -6,8 +6,11 @@ import 'package:pinball_components/pinball_components.dart';
 import 'package:sandbox/common/common.dart';
 
 class BasicSpaceship extends BasicGame with TapDetector {
-  static String info = 'Renders a spaceship and allows balls to be '
-      'spawned upon click to test their interactions';
+  static const info = '''
+      Shows how a Spaceship works.
+      
+      Tap anywhere on the screen to spawn a Ball into the game.
+''';
 
   @override
   Future<void> onLoad() async {