create gnome config

basic keybinds, pinned apps, extensions, etc.

hosts/kitagawa/default.nix

@@ -15,7 +15,7 @@ in {
     "${modules-dir}/nh.nix"
     "${modules-dir}/home-manager.nix"
     "${modules-dir}/zsh.nix"
-    "${modules-dir}/display-managers/lightdm.nix"
+    "${modules-dir}/display-managers/gdm.nix"
     "${modules-dir}/desktop-environments/gnome.nix"
     "${modules-dir}/window-managers/niri.nix"
   ];