Feature request: Add "mute microphone" button for video recordings

[TheOneWithTheBraid]

In some cases, especially regarding laws of many countries as well as privacy concerns, it might be useful to have an option to record a video without audio.

I would propose to make a corresponding indicator visible on the screen during the time of recording while placing the switch in the quick settings.

Such a button might be useful for recordings where you try to preserve privacy of people speaking closeby while it's no option to convince people you will later remove the audio from the recording.