NEXT_PUBLIC_FEATURE_TEAM is a buid-time env
variable, it is not easy to overload it per
environment.
We will use the config endpoint to get the
feature flag at runtime.
To do so, we are using the ConfigStore.
- user can add an externally created mail domain
from UI and see the mail domain status on mail
domain page and left panel links.
- user can not create mailboxes to domain if mail
domain status is not equal to `enabled`
- update related tests and translations
Used https://github.com/openfun/joanie as boilerplate, ran a few
transformations with ChapGPT and adapted models and endpoints to
fit to my current vision of the project.