[1.20.6+] Changed password input to use an anvil inventory as gui.

[FireInstall]

That way a password can't get leaked by typing the command wrongly anymore. But, to make this possible I had to dig into nms code.
For now I don't know how easy this breaks in case of version updates.
So this should stay open until next major 1.21 subversion gets released and this can get propper tested!

[FireInstall]

One thing and one thing only would be better than this and that would be hooking in even earlier / deeper and work only on packet level.
But that's not fun at all.

[FireInstall]

Also, whenever this is about to get merged:
Please bump the version number!

[FireInstall]

Update: Seems like nms code doesn't break any and every version anymore. Only ever if Mojang (or further downstream) changes anyghing. Hurray!

May get interesting, if this ever becomes a true paper plugin and doesn't get threaded like a spigot one anymore (remap and reflection to new paper methodes)

[FireInstall]

Could run in earlier versions, but since this works with nms code this should get used with 1.20.5+.
Since our server will skipp this version and instead catch up to 1.21.1? this should get merged with the 1.21 stuff.

[FireInstall]

force push onto main

[Schpammer]

May be obslete with https://minecraft.wiki/w/Dialog and the corresponding paper API.

[FireInstall]

Maybe. But depending on how paper implements the new dialog api, I can foresee myself still needing nms-usage.
I will have a look into that once paper has merged PaperMC/Paper#12671
Or better even something stable instead of temporary methods.