🚚 [shared] Added shared config that shared desktop config inherits from

shared/desktop/home-manager/gtk.nix

@@ -0,0 +1,20 @@
+{ theme, ... }:
+
+{
+  # TODO deprecated, remove
+  catppuccin.gtk = {
+    enable = true;
+    flavor = theme.flavor;
+    icon.enable = true;
+  };
+
+  dconf = {
+    enable = true;
+    settings = {
+      # Prefer dark mode for all GTK apps
+      "org/gnome/desktop/interface".color-scheme = "prefer-dark";
+    };
+  };
+
+  gtk.enable = true;
+}