Add GNOME

- Add config option to switch between window managers / desktop environments
- Remove systemPackages attribute when a service or program attribute is available
- Add GNOME to gui

system/hardware/openrgb.nix

@@ -2,7 +2,5 @@
 
 {
   environment.systemPackages = [ pkgs.openrgb-with-all-plugins ];
-  services.hardware.openrgb = {
-    enable = true;
-  };
+  services.hardware.openrgb.enable = true;
 }