Interactive code samples should support a non-JSX view

[bvaughn]

On the old website, the interactive code samples on the home page used to have 3 tabs:

• JSX editor
• Non-JSX editor
• Preview

The non-JSX tab showed what the JSX compiled to (eg <div/> => React.createElement('div')). This was a useful view for people who are new to JSX or who just feel more comfortable writing regular JavaScript.

We should add this view back to the code editor.

Please work with @joecritch and @bvaughn if you'd like feedback on UI/UX.

[bvaughn]

Closed via #141