Notifications for users requests should occur in the same channel it originated from #146

I have the bot setup in multiple servers/channels and the bot configured to notify in the same channels. I also have it configured to automatically notify users when their requests complete.

However, if there's overlap of users between these servers/channels, the bot seemingly picks a random one to notify in. That is, the request can be made in one channel but the notification will happen in another (or even an entirely different server).

Ideally the bot should notify in the same channel the request originated from, if notifications are allowed there.