Use the code inside `src/js/helpers.js` to integrate with the backend

[AndrewLester]

Description

Use the code inside src/js/helpers.js to integrate with the backend. The backend can be run by running, in the backend folder, npm install then npm start.

Run the backend in a separate terminal to the frontend.

You'll need to use useEffect and async/await to properly use the helpers.

Learning objectives

• Async/await
• useEffect