nocticron

`update_user_me` [endpoint function](https://github.com/tiangolo/full-stack-fastapi-postgresql/blob/490c554e23343eec0736b06e59b2108fdd057fdc/%7B%7Bcookiecutter.project_slug%7D%7D/backend/app/app/api/api_v1/endpoints/users.py#L54) doesn't have a check if a user tries to update self email to another user's email. Database handles this correctly (by `unique` email constraint), but the service...