Reorganize project into scene-based structure

[l2succes]

While we’re talking about how to better organize our apps and file structure. I think we should
consider reorganizing emission into a scene-based file structure.
“A scene is a page of your application. You can see a scene just like any component, but I like to separate them into their own folder.”
This would work really well for emission since we have independent top level containers
with their own set of child components.

You can read this post for context: https://medium.com/@alexmngn/how-to-better-organize-your-react-applications-2fd3ea1920f1