This function retrieves the user configuration from the browser's local storage. The user is notified if no saved configuration was found and the flag is stored to the session storage.
The raw data, data file type, default time and gap limit, or undefined if there is no stored configuration with data in it.
This function retrieves the user configuration from the browser's local storage. The user is notified if no saved configuration was found and the flag is stored to the session storage.