Dancer: Problem when starting with docker-compose

[halbekanne]

The dancer will not start when starting it as a Docker image in docker compose.

The error is: Parameter 0 of constructor in net.dancier.dancer.authentication.service.CaptchaService required a bean of type 'net.dancier.dancer.authentication.service.CaptchaClient' that could not be found.

We should fix that since starting the backend that way is the default suggested method described in the Readme.