Complete recode, this version is not compatible with 3.0, please reset all your configuration

Changelog:

• Added multiple /is top categories
• Revamped missions system
• Added ability to swap boosters and upgrades
• Added ability to create potion effect boosters/upgrades
• Added ability to disable nether/end worlds to improve performance

These are the main changes, but the plugin should also be faster and have a few quality of life changes.