[BUG] - No filter on AFK status text

[tyract]

Describe the Bug

When setting your status as AFK, you can set a piece of text that will be displayed when a member mentions you. The text in said field is not filtered and can be abused.

To Reproduce

Set your status as AFK and add the status test:

/afk reason <any blocked term>

Expected Behavior

Tux not allowing you to set your status text as a blocked term, instead throwing an error.

[thanosengine]

Tux currently does not handle any automod by itself. we'll likely fix this if it becomes a serious issue, or when we write automod support in.