- Introduced `scale` property across components for responsive design.
- Adjusted dimensions and positions dynamically based on scale.
- Enhanced flexibility for varying display resolutions.
- Introduced `AFTER_GAME` state to handle post-game logic.
- Updated `GameUI` to show restart prompt when the game ends.
- Modified `StartPage` and `MainWindow` to support restart behavior.
- Adjusted `endGame` method to transition to `AFTER_GAME`.
