PreventStabby

This is a breaking change if you're upgrading from 1.x, you will need to reset/remove your database file!

Changes:

• rewrote most of the code
• plugin is now using one unified check for all combat events to prevent inconsistencies
• plugin is now using more modern checks, resulting in requirement of paper api and minecraft version of 1.21+
• most of the bugs plagueing 1.x have been resolved thanks to simpler system