Any way to persist the settings?

Every time when I restart the docker container, I have to reset all the settings, specially for the node label.
It would be better to persist the setting somewhere and load it when the container is started.

No file, test, or entry point is named. Start by tracing how the visualizer currently stores the node label and how the Docker container starts; determine a persistence location that survives container restarts. Done means settings, especially the node label, reload automatically after restarting the container.

Written by the indexing model from the issue text.