Make VOX a 20k SpaceBux item

[RelentlessGarbage]

Don't want to be a stick in the mud, but giving more people the ability to use the VOX seems like a bad idea. I already don't trust the admins with it, and if we're implementing a feature that causes me to hear "amogus" or "sus" even more than usual, then I think we're making a bad design decision.

If the VOX could be muted via an option in the option's menu, then I'd be ambivalent about this.