Issue title: Storybook on @nrwl/next:app
 Issue body: ## Description
As far as i know, if we try to add storybook configuration, via @nrwl/react, to @nrwl/next:app in Nx 13.1.4, we receive an error at build time on storybook target because it seems that Storybook needs babel config like @nrwl/react:lib to build successfully but @nrwl/react:lib babel config is incompatible with @nrwl/next:app babel config.

## Motivation
Integration of Storybook workflow on @nrwl/next:app, for example, to run isolated pages.

## Suggested Implementation
Same process that runs @nrwl/react:storybook-configuration in @nrwl/next.

 Comments: 
 Comment 0: I'm trying to integrate `@nrwl/next` and Storybook too. Here is a repo.
https://github.com/puku0x/nx-nextjs-storybook-sample

It seems it works for me but the best solution is to make `@nrwl/next` support Storybook, indeed. 
 Comment 1: This issue has been automatically marked as stale because it hasn't had any recent activity. It will be closed in 14 days if no further activity occurs.
If we missed this issue please reply to keep it active.
Thanks for being a part of the Nx community! 🙏
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