Add a Lock to the new “Allow Commands” Toggle

I think the new "Allow Commands" option in the World Options menu (introduced in 26.2) would benefit from having a lock, similar to the existing Difficulty Lock.

For players who deliberately choose to play Survival without commands, simply turning commands off doesn't provide the same commitment as a locked setting. Commands can still be re-enabled at any time through the World Options menu, which can undermine the purpose of creating a genuinely no-cheats Survival world for players who want to hold themselves to that restriction.

I think there should be a “Lock Commands” option that permanently disables the ability to enable commands again for that world, with the Allow Commands button becoming greyed out once locked.

This wouldn't change anything for players who want to use commands, but would give those who want a genuinely no-cheats Survival experience a way to commit to it. It would also be consistent with the existing Difficulty Lock and give players more control over how they want to play their worlds.

Thank you!