Non-admin users should not have access to monitoring data

User feedback:

When I invited the first users, it was noticed that everyone gets access to the dashboard (which is logical), and thus to the link to our monitoring (Grafana) link. I'm not sure if there's an idea behind making this visible for everyone and not only people with admin status, but I think it would be a good idea to make it possible to hide it, as the first comment from the first person we onboarded was "should I have access to this, that's weird". Or am I totally wrong here?

Todo

• Don’t show the link in the dashboard for non-admin users
• When visiting the Grafana URL and logging in:
  • (Grafana) admin users should have access to everything they have access to now (no change)
  • Non-admin users should not
    • see most of the dashobards, manybe one hand-picked one which we verify it doesn't have any sensible data
    • have access to Loki because logs might contain passwords etc (we have luck that Loki is broken btw stackspin#1340 (closed) 😆 )