- UI Fixes for iphones X,
- Several bug fixes affecting performances & crashes
- Game balance

Gameplay changes:
- Health system change: You now start the game with 3 hearts. Each hit taken removes 1 heart and gives you 1 second of invulnerability.
- The 3rd and 4rth ships are now faster to unlock.

Performance changes:
- The main menu now runs at 60 fps.
- Minor bug correction causing the game to crash from time to time

Misc:
- Minor ui changes