BoatHud

This is an emergency quick-fix update to BoatHud, and contains the following changes:

• Fix a crash when the first boat a player rides when the game is launched is not a simple boat (raised by @craftish37, thank you).

This version deprecates BoatHud v1.1.9 effectively immediately.

This version was compiled against Minecraft 1.21.6 and is compatible up to Minecrat 1.21.10, and requires Fabric Loader (or equivalent), Fabric API (or equivalent) and Cloth Config.