[FEAT] Merge CMS with Database

[kkopanidis]

Is your feature request related to a problem? Please describe.
Currently conduit spins up multiple containers that don't really make sense to be separate, since they can't practically scale independently. Once such pair is CMS and Database. All CMS operations require the database and request increase in CMS is in a 1:1 relation with request increases in the Database.

Describe the solution you'd like
The proposal is to merge the 2 modules, and basically make all of the CMS functionality part of the database functionality.

Additional context
Something we should look out for is the breaking URL issues.