The deafen audio button wasn't visible in the titlebar unless you had
the 'use microphone permission'. Meaning if I would join a call, and
didn't receive permission to speak, I wouldn't be able to use the deafen
audio button.

Now the button is directly visible when you join a call. So you can
deafen the audio even if you didn't receive the mic permission.

Release Notes:

- N/A