Support for thread channels

[OoLunar]

When using /setup, the bot asks for a channel to post messages in. For my server, I prefer to have all of my logging channels posted as threads in a forum channel. I use a forum channel for two reasons:

• Staff members can join/leave the thread posts as needed.
• Thread posts don't get sent out to everyone, meaning those who use modded clients like Vencord cannot see the locked channels/thread posts.

Right now the bot seems to limit the channel parameter to only GUILD_TEXT (type: 0), which is perfectly fine for most use cases. However allowing PUBLIC_THREAD (type: 11) and PRIVATE_THREAD (type: 12) should allow use to use forum post threads too.

[totallytavi]

You propose an interesting idea. I'll talk with the other maintainers to get this assigned to someone.

We never made the changes to account for the thread channels so we might update a few other parts as needed.

[totallytavi]

Expect an update that'll fix this shortly