Added 1.21.3 Support

• Added Track Formatting.

3.6.6 UPDATE

- Fixed Group-formats null check error.

Added 1.21.1 Support!

Optimized Code.

3.6.4 UPDATE

• Added a config option for the [item] placeholder

• Added a permission for the [item] placeholder

• Fix for the [item] placeholder triggering for individual characters

  • e.g. sending a message with just "i" would also trigger the placeholder

• Fix for the [item] placeholder adding the hoverevent to the entire message Thanks goto @nahtaan #1

• Added a config option for the reload Message.