configuration.nix: last cleanup

modules/nixos/theme.nix

@@ -6,7 +6,9 @@
 {
   qt.enable = true;
 
-
+  # to resolve this https://wiki.nixos.org/wiki/Home_Manager#I_cannot_set_GNOME_or_Gtk_themes_via_Home_Manager
+  programs.dconf.enable = true;
+  
   environment.systemPackages = with pkgs; [
     swww #wallpaper daemon
     gruvbox-gtk-theme