mc1.21.1-v1.2.0

This is a beta release. All mod specific recipes have been removed for now, until the next release.

• Port to 1.21.1
• Code has been moved to dev.kleinbox domain
• Removed unnecessary language files (pirate speak, lolcat, etc.)
• Moved to Data Attachments instead of synced data injection via mixin
• New icon

Full Changelog: 1.1.2...1.2.0