Return status that the review is updated to for CNN review API

[grindarius]

✅ DoD

• Resolves CNN validations - return status that the review is updated to #622
• API docs updated
• Release notes updated
• Deployment notes updated na
• Unit or integration tests added
• DB migrations tested na

(use na when API docs (Release notes, etc) do not need to be updated)

📝 Summary

• Make the API POST /streams/:streamId/detections/:start/review return an object in a shape of

  [
    {
      "id": "1217128",
      "status": "unreviewed"
    }
  ]

  back to the user so they know what the actual review status is being written to in the database.

📸 Examples

Put screenshots or response/request examples here!

🛑 Problems

• Write any discovered & unresolved problems (link to created Jira issues)

💡 More ideas

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