Voice chat

[_KoBa]

There used to be a webrtc voice chat, but it was a pain to keep it working whenever browsers had any updates on how they handle audio :<

@anoek

Voice chat has been added (again) for reviews. Viewers will automatically connect into the voice system and can disconnect by clicking the button. Review creators can begin broadcasting clicking the button. Note: this feature is only available on browsers that support WebRTC, which is only Chrome and Firefox for the time being