Add gnome-keyring service for nextcloud credentials

hosts/desktop.nix

@@ -33,6 +33,7 @@ in
     };
     udev.packages = [ pkgs.yubikey-personalization ];
     pcscd.enable = true;
+    gnome.gnome-keyring.enable = true; # For remembering nextcloud login, among other things
   };
 
   environment.systemPackages = with pkgs; [ yubioath-flutter ];