Authorize access to asset creation in the marketing activities but not it in the design studio

[Grégoire_Miche2]

Today, if we remove the design studio -> email permission or the design studio -> landing page one from a role, that role will no longer be able to create, edit or approve these assets everywhere in the instance.

We should be able to distinguish the possibility to do it in the design studio and in the marketing activities. In other words, this should be distinct permissions.

-Greg