Folders! 1.2.4 for 1.21

Fix crash when saving an edited world or deleting a world

Folders! 1.2.3 for 1.21

Support for 1.21

Folders! 1.2.2 for 1.20.5

Update to 1.20.5

Folders! 1.2.1 for 1.20.4

Refactor code
Add interface injection
Remove Fabric API dependency