Move xserver service configuration

hosts/t480/configuration.nix

@@ -7,7 +7,7 @@
     ./hardware-configuration.nix
     ./modules
     ./secrets.nix
-    ./services.nix
+    ./services
 
     ../../users/opdavies.nix
   ];

hosts/t480/services/default.nix

@@ -1,4 +1,8 @@
 {
+  imports = [
+    ./xserver.nix
+  ];
+
   services = {
     auto-cpufreq.enable = true;
     gvfs.enable = true;
@@ -9,16 +13,5 @@
     throttled.enable = true;
     thermald.enable = true;
     upower.enable = true;
-
-    xserver = {
-      enable = true;
-
-      displayManager.startx.enable = true;
-
-      xkb = {
-        layout = "gb";
-        variant = "";
-      };
-    };
   };
 }

hosts/t480/services/xserver.nix

@@ -0,0 +1,12 @@
+{
+  services.xserver = {
+    enable = true;
+
+    displayManager.startx.enable = true;
+
+    xkb = {
+      layout = "gb";
+      variant = "";
+    };
+  };
+}