* /api/articles/me defaults to published articles
We want to make it explicit to retrieve unpublished articles, this change defaults `/api/articles/me` to only published articles, also adds `/api/articles/me/published`, `/api/articles/me/unpublished` and `/api/articles/me/all` to make requests more explicit.
* Refactor /me logic into a case switch
* Fix webhook API and add POST /api/webhooks docs
* Document GET /api/webhooks/:id
* Fix DELETE /api/webhooks/{id} and document it
* Add proper 404 specs
