University of Maryland Create a Program Code Computer Programming Question

I am trying to develop an app using react through Virtual Code Studios. I am working in a group setting and was wondering if someone could take a look at the below files and tell me and help me with the following:

1. What it does? Could you test it out and make sure it is working properly using the react interface/app? If not could you explain why it is not working and fix it and explain in detail what was wrong with it and what was done to fix it. Also could you jazz it up and look cool and explain and make a code that would display a loading page?