Upgrade storybook to v6 (#1350)
* Upgrade storybook to v6
* add storybook dark mode so we can have the storybook chrome match our currently selected theme
no good way to update one based on the other right now
* Rename files more clearly, we can't use webpack.config.js because storybook will try to do some things automatically with that
* remove added tsconfig include
Co-authored-by: Danni <drobinson@livefyre.com>
