Option to save provider configuration to disk

[jakern]

Is your feature request related to a problem? Please describe.
I have an unconventional use case in which my code server instances are always created with a different domain. I believe that the twinny provider manager is saving the edits to providers in the local storage. Every time I restart the code-server I lose my provider configuration.

Describe the solution you'd like
It would be nice if there was an option for twinny to save the provider information to disk so that custom providers could be saved across sessions. This would be especially helpful to allow us to easily set up different default providers for other users.

Describe alternatives you've considered
The alternative is that myself and other users I share this system with would need to manually edit the providers every time we restart our code server which can be several times per day.

If doesn't appear to be the case that if I force the domain to stay constant that the settings are still saved

Additional context
The installation of the extension and settings remains across server restarts but the provider configuration does not