Adds further tests and improves the structure in the storybook sidebar.

Changes from web/components folder location  to just /components.
This change can be done since the app has now the prefix web-graphpolaris

To follow the convention outlined in https://medium.com/showpad-engineering/how-to-organize-and-name-applications-and-libraries-in-an-nx-monorepo-for-immediate-team-wide-9876510dbe28 we need to update the app names and prefix with the intended deployment environment (web, windows, react-native)

Changes the component folder and filenaming consistently to lowercase.

Provides one idea how to handle redux and data state driven testing in storybook. Adds three test cases (1) with data (2) without data both handled in redux, (3) loading with an animated spinner