feat: Setup MongoDB #2

[jedchernandez]

What this PR does (required):

• Setup MongoDB that stores user information such as username, email, password, and register date.
• Setup environment variables
• Revert changes from react-scripts to make the application work
• Added rules to prettier/prettier to fix the eslint problem

Screenshots / Videos (required):

• test user account was stored in the database:
• MongoDB was properly connected after setting up environment variables:
• 
• Removed this error by modifying .eslintrc

Any information needed to test this feature (required):

Setting up environment variables

• Create a .env file
• Copy everything from the sample.env and paste it on the ,env file
• Put this on the Mongo_URI: 'mongodb+srv://(username):(password)@prod-azure-website.bqzsw.mongodb.net/(database)?retryWrites=true&w=majority'
• Grab the credentials from Slack

Setting up an account

• Try creating a user account:
• Login to MongoDB Atlas using the aforementioned credentials:
• Browse collections from the prod-azure-website cluster:
• Check to see if the registered user appears in the database:

  Any issues with the current functionality (optional):

  N/A