[activitylog] Maximum channels, throwing status message

[BJPickles]

As discussed with Caleb, seems activitylog has a maximum of around 50 channels before throwing a status message error.

"It has a throttle on how fast it edits. And that 400 is in the edit, not in the message fetch itself. So I suspect it's trying to send more than 2000 characters."

"It just means the status gets too long and I need to handle having too many channels somehow."