[React] Use the new React Context API

The React documentation has been warning us for a long time now that context shouldn't be used and that the API is unstable. Well, with the release of React 16.3, we're finally getting a stable context API and what's even better is that it has received a makeover and the dev experience is fantastic! In this lesson, we'll look at an example app that passes props down several levels deep into the component tree and replace all that prop drilling with the new context API. We'll see how to create a Provider and a Consumer, how to use them in the code and we'll take a look at how the default properties that get passed into The React documentation has been warning us for