Make automatic voice-chat region smarter

I think automatic region-switching was long overdue so props for implementing it.

I can't help but think one person shouldn't determine the whole experience of the channel (as the mod update suggests).

Rather than have the channel permanently set to the best region for the first person to join, let it update semi-regularly to that which is best for a majority of users or that's the best compromise.

I don't think it's a problem in the majority of cases but I still feel like it's something to consider so that the one member from Australia doesn't randomly make the experience of everyone else worse when there are 15 people in a channel (which I think the automatic mode is trying to avoid)