Port to older version (1.21.1)

New features:

• Community "Credits" screen! For everyone who supported or contributed!
• Filtering! Easier way to find sounds, textures and animations
• Config button inside key-bindings! No actual need to install extra mods to access config screen (got an idea because of pupcakie)
• Animation type Old-Like (suggested by Redls07)
• Traditional Chinese language by ChaTian (zh_tw)
• Portuguese language by translator (pt_br)

Bug fixes:

• UI highlight is being rendered beyond selection list
• More robust render checking, because of crash with some other mods (found by LiterallyLink)
• Filtering not working properly

Adjustments:

• Compatibility buttons (with Jade) is now hidden, when Jade is not installed
• Better UI indicator for easier understanding which texture/animation/sound is selected, and not (suggested by ttylmatt2)
• Splashes connected to ARG!
• Support for sounds from mods and resourcepacks instead of just Minecraft ones (suggested by F0rsakenPhant0M)
• By default Render Type is set to Transparent instead of Top