Feature request: enable the use of django-rest-framework endpoints/routes for subscribers

[dkdndes]

Use of a API endpoint instead of a template for the newsletter subscription

• https://colossus.readthedocs.io/en/latest/modules.html#subscribers

[vitorfs]

Integrating DRF is definitely on the roadmap. It will be added soon to the project. But I don't plan to remove the hosted sign up pages. It will be an addition instead.