Without updating the `FirstRun` setting it is not possible to login after signing up via the API. Otherwise the `HomeController.Index` action always redirects to the Registration page.
* GreenField: Notifications API
This refactors notifications so that we dont have a bunch of duplicated direct access to db contexts in controllers and then introduces new endpoints to fetch/toggle seen/remove notifications of the current user.
* add tests + docs
* fix test
* pr changes
* fix permission json
fixes#1958
Adds 2 new options:
* Do not allow stores to use the email settings of the server. Instead, they would need to fill in the email settings in their own store
* Do not allow user creation through the API unless you are an admin.
Both are opt-in and turned off by default.
This allows plugins to create custom dbcontexts, which would be namespaced in the scheme with a prefix. Migrations are supported too and the table would be prefixed too
