InnerGrid win animation and sound doesn't play on game reset

This is because the way we are handling the animation and audio is poor.

```dart
 if (widget.innerGrid.winner != null && !_didAnimateWinner) {
      _animationControllerPadding.forward();
      _animationControllerOpacity.forward();
      context.read<TtnAudio>().playSound(SoundEvents.InnerGridWin);
      _didAnimateWinner = true;
    }
```