Added:

• BetterModel 1.13.4 support

Bug Fixes

• bmmount: Fixed a command argument parsing error that caused a "Too many linear arguments" failure when executing the command.
• bmmount: Refactored the entire command logic to use the BetterModel API directly for mounting and dismounting entities from model bones.
  • This resolves the core issue where the command would appear to succeed but had no effect.
  • The command now correctly retrieves the RenderedBone and its HitBox to perform mount/dismount actions.
  • Added proper error handling to inform the user if the target bone is not a valid seat (i.e., not tagged with p in the model file).