chore: remove unawaited

packages/pinball_components/lib/src/components/backboard/backboard_letter_prompt.dart

@@ -34,22 +34,19 @@ class BackboardLetterPrompt extends PositionComponent {
   @override
   Future<void> onLoad() async {
     _underscore = RectangleComponent(
-      size: Vector2(
+      size: Vector2(3.8, 0.8),
-        3.8,
-        0.8,
-      ),
       anchor: Anchor.center,
       position: Vector2(-0.3, 4),
     );
 
-    unawaited(add(_underscore));
+    await add(_underscore);
 
     _input = TextComponent(
       text: 'A',
       textRenderer: Backboard.textPaint,
       anchor: Anchor.center,
     );
-    unawaited(add(_input));
+    await add(_input);
 
     _underscoreBlinker = TimerComponent(
       period: 0.6,
@@ -62,17 +59,15 @@ class BackboardLetterPrompt extends PositionComponent {
       },
     );
 
-    unawaited(add(_underscoreBlinker));
+    await add(_underscoreBlinker);
 
-    unawaited(
+    await add(
-      add(
       KeyboardInputController(
         keyUp: {
           LogicalKeyboardKey.arrowUp: () => _cycle(true),
           LogicalKeyboardKey.arrowDown: () => _cycle(false),
         },
       ),
-      ),
     );
   }