Option to lock World Options in-game based on creation settings

 Hello! My suggestion is about the in-game World Options available to survival players. I think the in-game World Options for Survival should have a system similar to Hardcore mode: restricting things like command activation and game mode changing once the world has started.

 I propose that these restrictions should be chosen by the player right when creating the world, matching their preferred playstyle, but once the world is generated, those options become permanently locked in-game (only keeping the difficulty and LAN settings manageable like it was in the previous versions).

Specifically:

• If "Allow Commands" is set to ON during world creation: The in-game World Options menu behaves as it currently does.

• If "Allow Commands" is set to OFF during world creation: The in-game World Options menu adopts the restricted, Hardcore-like layout, preventing players from toggling key settings in game, like it was in previous versions. Alternatively, adding a dedicated toggle for this lock feature in the world creation menu would be amazing.

Already existing worlds would remain unaffected, preserving their original configuration.

Thank you, I hope you like the idea and consider adding it to the game!