Sounds 2.1.0

• Migrated resource loading away from synchronizers, this should fix a wide array of resource reloading issues. If you're still encountering issues, you should delete the .minecraft/config/sounds/dynamic_sounds folder and restart the game. If this still doesn't fix your issue, report a bug on GitHub.
• Added configuration option available in mod_utils.json to toggle the visibility of the "Sounds" button in Minecraft's volume options screen.
• De-hardcoded the item drop sound cooldown, it now uses the cooldown specified by the existing "Item Sound Cooldown" option.