feat: allow moderators to mute users

[wescopeland]

This PR leverages the existing UserAccounts.muted_until field and Folio user management panel to allow moderators to mute users.

When a user is muted, they will no longer be able to comment, post or edit on the forum, or send DMs.

To mute a user, visit http://localhost:64000/manage/users/[USERNAME_HERE]/edit. There is already a field to set the muted_until value:

Before

After

[televandalist]

We're gonna need to pull the "admin comments" soon. Got a lot of catching up to do. ;)

[luchaos]

Minor detail: it's Filament instead of Folio ;)
Thanks for wiring it all up! ❤️

[wescopeland]

Terminology confusion 😵‍💫, thank you for the correction!

[Jamiras]

Should private messages also be muted? I assume we'd want to at least allow messaging RAdmin.

[wescopeland]

@Jamiras

Should private messages also be muted? I assume we'd want to at least allow messaging RAdmin.

My opinion is loosely held and I could be swayed otherwise, but I think private messages (including to RAdmin) should be muted. I assume this kind of action is going to be taken against a user who has already been warned to stop. Especially now that the UI will show when the mute will be lifted, once a user is muted I'm not sure there will actually be much more to substantiate on.

[Jamiras]

I've noticed that there's no way for a moderator to tell that a user is muted without looking directly at the database. The field appears empty when editing the account a subsequent time, and there's no audit trail.

Similarly, the muted_until field remains set even after the period has elapsed. The logic is still correct as it looks for times in the future, but it might be nice to clean that up after it's no longer needed.

[wescopeland]

#2313