move system to hosts directory

hosts/desktop/default.nix

@@ -0,0 +1,31 @@
+{ nixpkgs, home-manager, nur, globals, ... }:
+
+nixpkgs.lib.nixosSystem {
+  system = "x86_64-linux";
+  specialArgs = { };
+  modules = [
+    globals
+    {
+      networking.hostName = "desktop";
+      gui.enable = true;
+      gui.compositor.enable = true;
+    }
+    home-manager.nixosModules.home-manager
+    { nixpkgs.overlays = [ nur.overlay ]; }
+    ./hardware-configuration.nix
+    ../common.nix
+    ../../modules/hardware
+    ../../modules/system
+    ../../modules/desktop
+    ../../modules/shell
+    ../../modules/gaming
+    ../../modules/services/keybase.nix
+    ../../modules/applications/firefox.nix
+    ../../modules/applications/alacritty.nix
+    ../../modules/applications/media.nix
+    ../../modules/applications/1password.nix
+    ../../modules/applications/discord.nix
+    ../../modules/editor/neovim
+    ../../modules/editor/notes.nix
+  ];
+}