User settings as admin user #708
Description
Is your feature request related to a problem? Please describe.
I own multiple GPS trackers for which I want to track their routes in reitti. For each of them, I have to create a user with a password, login as that user and configure the setting like MQTT OwnTracks integration, that's quite cumbersome.
Describe the solution you'd like
Configure user settings like MQTT OwnTracks topic, sharing, avatar (and potentially others) as admin, maybe even make a user "managed" and disable login altogether. This would be perfect for "userless" GPS trackers.
Additional context
Loosely relates to #707