caddy-frontend: Encapsulate kedifa-configuration

Instead of passing various kedifa information to the profile generating
configuration use section kedifa-configuration and access later such grouped
values.
1 job for fix/caddy-frontend-202007
Status Job ID Name Coverage
  External
running SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-202007

38468:21:50