AppLauncher: show app names by default
No not that Application launcher, the other one...
By now we pretty much show app names by default everywhere, rather than their GenericName or Description values. This hidden off-by-default click-on-the-desktop app launcher menu is one of the last places where you'll see those. So let's make it consistent with the world around it.
cc @broulik @fvogt and @nicolasfella who are the last people to have made substantive changes to this code