Large Clean & Reorganise of 1.19

[sisby-folk]

Fixes #23, #21, #20

Basically:

• smashed the fabriclike/quilt/fabric packages into one fabric package
• used full midnightlib for both platforms instead of the midnightconfig class file for just fabric
• bumped gradle and loom
• bumped deps to match 1.19.2
• Reorganised all the platform-specific code to be more architectury-y (using more specialized impl classes)
• Cleaned and shortened a lot of boilerplate in general.
• Fixed enchantments appearing in tables, villagers, treasure, and mods on chestplates using a simple mixin.

In the end, the project should be a lot more brief. Happy to backport the project structure to the 1.18 branch if needed after.

[SammySemicolon]

My savior

[egshels]

you are so frekaing awesome for that tysm