restructure desktop/wm and remove nur

modules/wm/kde/home.nix

@@ -0,0 +1,16 @@
+#
+#  Gnome NixOS & Home manager configuration
+#
+#  flake.nix
+#   ├─ ./hosts
+#   │   └─ ./steamdeck
+#   │       └─ home.nix
+#   └─ ./modules
+#       └─ ./desktop
+#           └─ ./gnome
+#               └─ home.nix *
+#
+
+{ config, lib, pkgs, ... }:
+{
+}