Build 19

- Hats & particles should no longer clip into geometry

- Can now use spacebar to launch Zeepkist

- Can now use backspace to restart run

- Can now use enter to end run

- Can now use spacebar to toggle modifier list on end screen

- Can now use enter to skip & close end screen

- Purple, Red and Yellow zeepkist now have different character-zeepkist joint break thresholds

- Buy buttons grayed out during buy animation

- Settings menu (only slow-mo is currently hooked up to anything)