fixup! Add a first-run warning
fixup! Add a first-run warning

Avoid warning when not in a user session, by looking for DBUS_SESSION_BUS_ADDRESS

matthiasclasen/flatpak,matthiasclasen/flatpak,matthiasclasen/flatpak,flatpak/flatpak,flatpak/flatpak,matthiasclasen/flatpak,flatpak/flatpak,flatpak/flatpak,matthiasclasen/flatpak,flatpak/flatpak