There is currently no portal through which applications can request
access to the microphone. So all applications either access the
PulseAudio/Pipewire socket directly (which cannot be controlled by this
panel) or do not access the microphone (in which case they do not appear
here).
Hide the panel until such a portal exists. Remove the “microphone”
keyword from the panel's desktop file, used for in-app and desktop
search results.
Fixes https://gitlab.gnome.org/GNOME/gnome-control-center/-/issues/2848
f46fbd18a6
