Rectangularity performance update

changes:

1. Reduced game size by 50%~ (see examples below)
2. Increased performance
3. Added new show fps feature (tab to enable PC only for now)
4. Fixed a major bug where the game would run slower if it's running lower than 144 fps
5. Fixed physics bug if the game was running lower than 144 fps
6. Removed the sent feedback button on mobile (it didn't work correctly on some devices)

PC

Before:

After:

Mobile

Before:

After: