Add support for automatic redirect when not authenticated in Sentry

[einari]

For a turn-key authentication mechanism, we want it to happen as early in the pipeline as possible - preferrably no later than on the ingress-controller level. With this we then don't have to have authentication being dealt with at all on the application level.

Have a look at what is possible with Træfik out of the box; here.

There is an interesting (rejected) pull request here

Have a look at Keycloak as well

[einari]

Moving to the correct project