Rethinking React-Redux folder structure

[ekohl]

@Ron_Lavi

The React community had moved almost entirely to use React Testing Library | Testing Library

Note that this was previously discussed:

Use foremanReact directly in plugin tests

Hello Everyone, In Katello and other plugins, we use Foreman JS helper functions and React components that are provided by an alias foremanReact. This is set up by webpack and is used like a normal npm package, for example here in Katello. Because this of the way this is structured, we don’t use foremanReact in tests, rather mock it’s usage This has been working fine, but with new React pages being added, we would like to take advantage of the API middleware and other utilities provided by Fo…