Add nixpad configuration

The initial step of grouping lemp11 and t490 configuration, inspired by
https://github.com/mkellyxp/nixbook.

hosts/lemp11/configuration.nix

@@ -18,6 +18,8 @@
 
   desktop.media.makemkv.enable = true;
 
+  nixpad.enable = true;
+
   # Bootloader.
   boot = {
     loader = {
@@ -49,11 +51,8 @@
     vscodium
   ];
 
-  system.autoUpgrade.enable = true;
-
   environment.systemPackages = with pkgs; [
     fastfetch
     htop
-    libreoffice
   ];
 }

hosts/lemp11/services.nix

@@ -27,9 +27,6 @@
         layout = "gb";
         variant = "";
       };
-
-      desktopManager.cinnamon.enable = true;
-      displayManager.lightdm.enable = true;
     };
   };
 }