VanillaDisable

Partially redo configuration system (again):

• Move the worldgen config to the common command format, and add to common GUI (worldgen GUI still exists for pre-world creation GUI
• Move the gamerules that still exist in v3.x.x to the common command format
• Migrate the old configuration systems

Other substantial changes:

• Rewrite worldgen GUI (for pre-world creation) to be more user friendly

Code changes (that shouldn't affect the end user):

• Rewrite most of the config code (including the command) to simplify them and make development a lot easier (I now once again understand how my mod actually works!)

• Make disabling advancements actually work
• Only send advancement failure message if advancement manually triggered through command to prevent chat spam

Remove some JiJ'd libraries

• Write own code for gamerule registration on all platforms, ditch fabric-gamerule-api on fabric
• Write own code for keybind registration on all platforms, ditch fabric-key-binding-api on fabric
• Switch worldgen config from .toml to .properties (ditch toml4j), and implement migration -> new global config toggle for chat message when new worldgen features are added

Create new worldgen config menu for the world creation screen

• Easier to configure worldgen rules
• Remove old menu; remove global config toggle for old menu

Create mixin config class only once; fix number of mixin overrides being logged twice