[Feature] Command Auto Completion

[Zoriot]

For every plugin. But the most important one is Plot System. Maybe we use Brigadier Commands for that.

[Zoriot]

Essentials Plugin is finished, Rest will be worked on when Paper's Command System is out of experimental. https://docs.papermc.io/paper/dev/command-api/basics/introduction/

We could also use a framework, maybe its not nice because its one dependency, possible Frameworks would be:

• https://cloud.incendo.org/
• https://docs.commandapi.dev/
• https://github.com/Strokkur424/StrokkCommands
• https://github.com/aikar/commands