Discs Where Discs Shouldn't Be 1.6.5

This version includes a ton of changes! As always, if you find any bugs, please let us know by reporting it on our Discord server.

GENERAL CHANGES

Updated to 1.21.5
Updated to Fabric Loader version 0.16.10
Fixed datagen. This should not impact gameplay but will make future development easier.
Added a Creative tab to view all DWDSB items. Items can still be found in other creative tabs like before.
Changed the Musical Wonder Advancement tab background from Note Blocks to Dark Oak Planks.
Officially removed the rotating icons in the Smithing Table.
Adjusted the Wandering Trader's price for a Disc Core, and added the Ancient Whistle as a trade. Both are under the common trades pool.
Changed the Unrefined Disc Core to Disc Core. This means the old item will be deleted, so back up your worlds and count your cores!

All Advancements and items have been moved to translation keys. This allows for translations!
Fixed many small grammatical errors in English Advancement names and descriptions.
Added Russian, Simplified Chinese (Mandarin), and Spanish languages. Thanks to @gribubas, @kitkatsq, and @okkarin for the help! These languages currently apply to items only.
Added some other languages. These do have full translations for both items and Advancements. Maybe you'll find the purrrfect itemz, some pirate booty, or ǝɹoɔ ɔsᴉp uʍop-ǝpᴉsdn uɐ!

Are you able to translate and want your language to be represented? Reach out and help us!

Added unique 3D models for each whistle. 3D models are shown while held in your hand, but not in your inventory or item frame (similar to a trident).
Note particles now appear when a whistle is played. (This is currently only client side. This will be fixed in the future!)
Updated translations for jingle subtitles.
Updated MusicNotification toasts for all whistle jingles. Each one has its own custom icon.