Improve pattern for updating token

[helrond]

Is your feature request related to a problem? Please describe.

Updating the token (which needs to happen fairly frequently because there are often stretches when this app isn't used a lot) is a bit of a PITA and also requires SSH access to the server.

Describe the solution you'd like

Make this process easier! A couple of alternatives:

• Use login credentials in the config instead of a token, and then log the app in each time the page loads
• Provide a mechanism for someone to provide login credentials via the UI

Additional context

The downside to storing credentials in a config file for javascript is that those credentials are then exposed. In addition to the above options, it may be worth considering migrating to a different framework that supports better credential management.