[+] Support for 26.1
[+] New: /nw temp create (Create worlds for a specific duration)
[+] If the time limit expires on temp-worlds, players will be kicked from the world, and the world will subsequently be deleted.

[+] Add World Type: FLAT

[+] /nw lang (lang) now work correctly
[+] update gamerules menu

[+] Update Modifiers menu
[+] add world rename option
[+] update startup & disable messages
[+] Existing worlds are now registered correctly