Changelog:
- Fixed this Bug: When stopping the game, the users scrollbar doesn't come back! They can't scroll anymore and have to refresh the page.

Changelog:
- Fixed bug where the scrollbars sometimes wouldn't disappear when starting the game.
- Added an Easter Egg, can you find it? (Hint: it's somewhere in the menu)

- Fixed the following bug: When starting, stopping and then starting the game again, the InputHandler won't react to given keyinput and the user can't play the game.

- Ball and Paddle speed are now constant. Beforehand they were calculated based on the window size of the user, which was buggy and unreliable. I tested constant speed on different monitors and the game feels much better this way!
- Bugfix: Prevent arrow key event propagation. If you try to play the game (v1.0.0) on a youtube video for example, pressing the keys would move the video forwards or backwards, which is distracting. When the game is running, we stop propagating such events to only capture the movement of the paddle.