Support for Minecraft 1.21.2 and 1.21.3
Modifier keys like Shift will no longer show as conflicting with regular keybindings.
For better maintainability and continued support of the whole version range the development was changed into a modular jar-in-jar build. The same mod jar can be applied to any version since Minecraft 1.14 including snapshots now!
Less log spam! The added keybindings will no longer show as info in the console output but are still accessible as debug messages.
fixes a small issue with rebound Esc in the key binds menu
