If a channel is deleted, when doggo comes to woof and that channel no longer exists it should delete the channel id from the config and pick a new one. and it will just ignore a deleted channel if pets command is used.
* Simple ones first
* Less simple but still simple.
* Slightly more complicated
* use correct name
* move to module
* Black -l 120
* review
* give users the proper feedback
Co-authored-by: aikaterna <20862007+aikaterna@users.noreply.github.com>