Refactor and optimization

Full Changelog

• Completely refactored codebase
• Optimized logic and structure
• Bug fixes and improvements
• Added permission checks for pages
• Now requires PHP 8.0+
• Updated for NamelessMC v2.2.0 compatibility
• Added localization for each page in the localization file

Full Changelog: 2.1.0...1.3.0

Bump NMC Version (Last update)

NamelessMC 2.2.0 will have the module included (I'll try to make it)

CustomDropdown 1.2.4

• Green means enabled, red means disabled IMPORTANT
• Formatting
• Remove all PHPStan errors