Decouple CMS features from campaigns frontend

[valexiev]

The Marketing team needs to manage the static pages, blog posts, top and bottom navigation on their own without the need to ask the Dev team to do anything in the git repo.

The core features of the CMSs are exactly the ones needed by the Marketing and we don’t need to duplicate them in our platform.

The suggested solution is to setup а CMS and in its theme (frontend) to embed the campaigns (their data comes from our platform). The Marketing will use the CMS in a standard way. The publishing of campaigns remains unchanged.