fix(sddm): xd move it under services again...

systems/common/core/xorg_plasma.nix

@@ -1,5 +1,6 @@
 { 
-     services.xserver = {
+     services = {
+         xserver = {
              # Enable the X11 windowing system
              enable = true;
      
@@ -9,6 +10,7 @@
                  # variant = "qwerty";
                  # model = "thinkpad";
              };
+         };
          # KDE X
          displayManager.sddm.enable = true;
      };