ServerSystem 2.4.0

+ Added /managehomes command

* Fixed floating vanish head for 1.20.5+ (1.20 - 1.20.4 still don't work!)

* Fixed /gamemode no permission message

* Fixed /serversytem reload not actually reloading all configs

* Fixed commands like /grindstone

# Changed how commands get registered/managed. This is a breaking change!

# Did some reformatting

# Finally! ServerSystem is no longer multiple MB in size!