add storybook-react and storybook-react-native and jest tests to starter repo

[dohomi]

Hi Guys,

I'd love to see Storybook for react and react-native as well as some Jest testing inside of the starter template. I am playing around to add it myself but especially with Storybook there seem to be some webpack config missing which is not intuitiv.

I think the best folder structure would be:

apps/expo
apps/nextjs
apps/react-storybook
apps/react-storybook-native