Version 1.2.0

Today marks the 2nd anniversary of the release of this game (and my 25th)!
To celebrate, I decided to actually finish the update I intended to publish last year.

Ended up finding and fixing some new bugs and adding extra stuff, so here's the full changelog:

New Features:

• Added a new wall bouncing mechanic! Should make hitting walls at steep angles less frustrating.
• Added toggles for music, sound and the new wall bouncing.

QOL Changes:

• Right-clicking a player's key in the Controls screen now clears it.
• The Pause screen now has a black tint.
• Added section about the Function Keys to the Help screen.

Bug fixes:

• Did some small optimizations, might run better on slower machines now.
• Fixed a bug that messed the Controls screen.
• Fixed a bug that caused the game to think karts fell off after touching the bottom tip of a ramp and going away.
• Fixed a bug that allowed karts to drive from an upper floor into the lower part of a ramp without falling.
• Fixed the annoying sound when karts kept driving against a wall (still happens occasionally, just not as noticeable).
• Changed text in several places to fix weird wording or add information.