Feature: CMS multilanguage

As we told, we need help with images and migrations.

Images (logo, partners) duplicates when component re-renders.

Migrations: since database column types re-maked to JSON object types, can we save the previous value? Like saving it in

{
  "en": "Old data here",
}

Didnt work with Postgres, can't find info about it.

linked merge request - flax!35

https://docs.google.com/document/d/1CuK3GMLsC7_bgUxtPBF24u0tClwPQoLt31e0i84ufSU/edit