MKAudio: make MixWithOthers work again, after Bluetooth support was added; alsoo be paranoid about MixWithOthers re-activation.
MKAudio: make MixWithOthers work again, after Bluetooth support was added; alsoo be paranoid about MixWithOthers re-activation.

emiliopavia/mumblekit,emiliopavia/mumblekit,emiliopavia/mumblekit