Drone Series - S3 image upload component

The goal here is to build (or integrate existing) component that will upload images to a S3 bucket. It should be implemented as a React component with properties for bucket details. It will support image drag&drop and will display thumbnails for the uploaded images and will fire an event when upload is finished.
The UI should be quite simple - a drop zone for file input and a list of thumbnails for the uploaded images.
Images should go directly to S3 without passing through the backend server. Backend should only sign the upload request.

The component will later be used in Drone Service Provider website to upload mission results (images) like in the screenshot bellow


For verification, create a simple page that will contain the component.
Base code for this challenge is in the imageUpload branch in the frontend and backend repositories

NOTE: The review and appeals phases are shortened, pay attention to the timeline

Final Submission Guidelines

Submit a git patch for your changes to the base code
Submit a short video demonstrating the implemented features
Submit a short verification guide with screenshots (verification guide should be placed in the /verification-docs directory)