Added support for LuckPerms and configuration file

Added support for 1.21, 1.21.1, 1.21.2 and 1.21.3

Added support for 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6

Added support for 1.19, 1.19.1, 1.19.2, 1.19.3 and 1.19.4

Added support for 1.18, 1.18.1 and 1.18.2

Added Support 1.17 and 1.17.1

Added GUI commands kick and ban.

When a player with op or permissions minecraft:command.ban, minecraft:command.kick left clicks player head in the online players GUI opens options GUI with the commands kick or ban.

Added support 1.16.1, 1.16.3, 1.16.4, 1.16.5

Now each player has its own inventory.
Updated when players join and quit events.
Added when some player is vanished he isn't added into GUI.

Added GUI update when players join and leave while other players are watching GUI.
Added support 1.8 - 1.16