🚧 WiP: Chore/cleanup react

[Lewiscowles1986]

So I Can split this PR: but this is the feedback I have working so-far...

• [X] Separated runtime and dev dependencies (it actually seems like in this case it makes zero difference, but it's good practice)
• [X] add a linting script
• [X] Remove the alias for build (just use npm run build)
• [X] Add some guard clauses
• [X] Add some tests (looks like the current structure is a bit hard to test)
• [X] Extract root component separate from Analytics bindings, CSS (outer-edge)
• [X] Remove console.log call(s)
• [X] Move & Guard setState call(s) (not ideal)

I Could split this into multiple PR's and do a bit at a time as right now these are mostly Frontend presentation tests and they don't cover most of the important detail.

• [ ] Test isolated libs separately
• [ ] Isolate some Component code that should be library & add tests
• [ ] Re-structure components to avoid mounting issues during re-render for tests. (Redux stores instead of state might be an approach here)

[Lewiscowles1986]

Should likely be labelled "Do Not Merge" 🚧

[JKamsker]

Awesome! Thanks! Keep it up! :)