CraftUI

Ah screw it, I'm removing the alpha tag now because I'm putting it on Modrinth.

I've cleaned things up significantly internally and added a number of new features:

• Added file browser test button to settings app
• Made settings accessible without modmenu
• Added layout presets and multi-workspace layout system
• Added style switching system
• Various internal reorganization and cleanup

This build is not backwards-compatible, but that shouldn't matter because no-one's using this yet.

Full Changelog: https://github.com/Igrium/CraftUI/compare/0.2.1...0.3.0