[IMPLEMENTED] Auto-delete "no permission" messages for moderator commands

[Kiim#5873]

many users, including me, use Tatsu mainly for leveled roles, and not to ban/kick users with the bot. it's tedious when users clog the chat by having Tatsu say "YoU DoN'T hAvE pErMiSsIoN tO uSe ThIs CoMmAnD", even in a ignored channel.

[Gabe || Игорь#6666]

I'm sorry but I disagree. I don't use tatsu for mod stuff because it lacks more than not on that field, but as a last resort it's good to have it (like when the other mod bot(s) are down there's still tatsu to use for an urgent case to handle). I get your issue is super annoying, so maybe a settings like with dyno would help on this; turn off mod commands from users, in a way which the bot just refusing to react to mod commands at all from non-staff.

[Aericio#4684]

I agree, it can get annoying. Approved with different implementation.

"No permission" message will still be sent, however the message will delete itself after a set amount of time.

[Aericio#4684]

Implemented. It should be out in the next patch.