pantheon.switchboard-with-plugs: Fix dbus file path

https://github.com/elementary/switchboard/commit/c63cdd984f52e3e6769beb38fdbce033080cfd2c

pkgs/desktops/pantheon/apps/switchboard/wrapper.nix

@@ -53,6 +53,11 @@ stdenv.mkDerivation {
     for i in $(cat $pathsPath); do
       ${xorg.lndir}/bin/lndir -silent $i $out
     done
+
+    dbus_file="share/dbus-1/services/io.elementary.settings.service"
+    rm -f "$out/$dbus_file"
+    substitute "${switchboard}/$dbus_file" "$out/$dbus_file" \
+      --replace-fail "${switchboard}" "$out"
   '';
 
   preFixup = ''