Also update these deps to be compatible with latest Doctrine version:
- `friendsofsymfony/oauth-server-bundle`
- `lexik/form-filter-bundle`
- `dama/doctrine-test-bundle`
I've added a toggle feature (in internal settings) so that user api creation can be disabled while form registration still can be enabled.
Also, the /api/user endpoint shouldn't require authentication. Even if we check the authentication when sending a GET request, to retrieve current user information.
I've moved all the internal settings definition to config to avoid duplicated place to define them.
I don't know why we didn't did that earlier.