Under Catalina, my iPad would be always be listed in the screen mirroring menu allowing me to easily connect to it with Sidecar. I upgraded to Big Sur and now the menu only shows non-Sidecar options like AppleTVs... so in order to turn Sidecar on and off I have to go into System prefs which is much less convenient. Any way to get my iPad to show up in the menu like it used to?