Fix the issue with not loading on servers that don't use Java 17+

Add applicable regions Menu and Global Region easy config
Fix the error on the console in pre 1.16.5 servers

ADDED: 1.19 support for particles

ADDED: Player permission for flag and template inventories

1.18.2 Support
Confirmation GUI before deleting a region with the menu

ADDED: Adding a blocked command
ADDED: Removing a blocked command

NEW: 1.18.1 Support!

FIXED: Inventory bug

Optimized code
Minor bug fixes

CHANGED: Optimized region border displaying feature. Thanks to @Aixite (There might still be problems in larger regions)

FIXED: Delete region bug

FIXED: Template duplication

CHANGED: Optimized code
CHANGED: Changed predefined templates.yml

ADDED: Template feature

CHANGED: Main menu
CHANGED: Optimized code

FIXED: Rename feature

CHANGED: Optimized menus and the code

ADDED: Rename feature.
ADDED: Display boundaries.

CHANGED: Region menu.

FIXED: Particle bug

ADDED: Set parent menu
CHANGED: Main menu