Rework of Ambix using functional components and hooks rather than class components.

npm run now - Creates a production build of the frontend and serves it on PORT 3000. The development server used by create-react-app has a refresh quirk that creates a race-condition when loading the YouTube IFrame API. This is a quick workaround.

npm run build - Uses the create-react-aoo build script to generate a production build in the /build directory.