#1265: Configure Prod React App to Access Server

[ceciliazaragoza]

• Make API_URL dynamic based on the environment.
• Environment handled by vite. When working locally, vite is in DEV mode, or environment, and when deployed, vite is in PROD mode, or environment.
  • When run npm run build and vite build is created, that build is in PROD mode.
  • We can dynamically have environment variables depending on the environment which are used to create API_URL
• The dondi.github.io was added as a CorsOrigin so that the react app can access the server.

[coveralls]

coverage: 80.06%. remained the same
when pulling 9843c79 on cecilia-1265
into 569311d on beta.