* Added translation for the `Download language pack` feature.
* Added: Translation for `/mclang help` explanations.
* If you cannot see the translation, please delete `.\message\XX.json` and a new file will be generated automatically.
* Improved: `String getItemTranslate(ItemStack item)`
* Now accurately detects potions, splash potions, lingering potions, tipped arrows, and music discs.
* Added: `String getEntityTranslate(Entity entity)`
* Now correctly detects villager professions.
* Add [Example](
https://github.com/0obriano0/MCLang-example)
* Move the file download to asynchronous execution, and temporarily use en_us until the download is complete.
* test in 1.21.6