Flop v2

Hello, I've updated the game with a few improvements outside of the game jam competition time:

- Bricks will appear anywhere on the screen (holding down right is no longer the optimal strategy)
- Fix "tail lock" for falling whale when moving from bottom of the screen to the top
- Fix issues with pausing
- Add volume control
- Smooth movement when whale tower height increases
- Add flying text when whale is hit by a brick / successfully lands on the mattress