Handle the syncthing special case

src/freedombone-utils-webadmin

@@ -531,6 +531,7 @@ function web_admin_create_installed_apps {
                             # syncthing is treated as a special case
                             # instead of showing a url or onion address we show the
                             # syncthing ID
+                            sed -i "s|app_qrcode_${app_name}.png|${app_name}_qrcode.png|g" "$filename"
                             read_config_param MY_USERNAME
                             if [ -f "/home/$MY_USERNAME/.syncthing-server-id" ]; then
                                 syncthing_id=$(cat "/home/$MY_USERNAME/.syncthing-server-id")