Some gstreamer plugins require a connection to the display server, so if we end up initializing gstreamer before we are ourselves fully initialized, we may end up with a locked compositor. Avoid this by moving the runtime recorder check into the screencast D-Bus service, so that all gstreamer calls happen out of process. https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/5710 Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2519>
