register user working with backend

[sarross88]

Description

_1) I added a file called customFetch, that uses axios and our base url for the backend and set up the register page to work with the backend and I changed the action within App.js

[GinaCastromonte]

Your error handling could be improved by providing more user-friendly feedback. Return a clear message to the user, such as "Something went wrong, please try again," and make sure sensitive information is not exposed. Great job otherwise!