Deletes a user

curl --request DELETE \
  --url https://{hostname}.gable.ai/v0/settings/users \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --data '
{
  "email": "<string>"
}
'

{
  "message": "<string>",
  "id": 123,
  "title": "<string>"
}