machines: aramis: home: enable GTK

In order to not have an error at activation, dconf must be made
available to the dbus service.

machines/aramis/home.nix

@@ -11,6 +11,8 @@
     gammastep.enable = true;
     # Use a small popup to enter passwords
     gpg.pinentry = "gtk2";
+    # GTK theme configuration
+    gtk.enable = true;
     # Machine specific packages
     packages.additionalPackages = with pkgs; [
       jellyfin-media-player # Wraps the webui and mpv together
@@ -40,4 +42,9 @@
       wallpapers = "${pkgs.plasma-workspace-wallpapers}/share/wallpapers";
     in
     "${wallpapers}/summer_1am/contents/images/2560x1600.jpg";
+
+  services.dbus.packages = with pkgs; [
+    # Allow setting GTK configuration using home-manager
+    gnome3.dconf
+  ];
 }