[showcase] Add DN Prio

[olofd]

One of Swedens largest newspapers built their latest app in React Native.
http://www.dn.se

(Author of the app here.)

[ghost]

By analyzing the blame information on this pull request, we identified @brentvatne and @manonthemat to be potential reviewers.

[ghost]

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[ghost]

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[mkonicek]

@facebook-github-bot shipit

[ghost]

Thanks for importing. If you are an FB employee go to Phabricator to review.

[mkonicek]

Thanks for choosing React Native! 👍

[ghost]

I tried to merge this pull request into the Facebook internal repo but some checks failed. To unblock yourself please check the following: Does this pull request pass all open source tests on GitHub? If not please fix those. Does the code still apply cleanly on top of GitHub master? If not can please rebase. In all other cases this means some internal test failed, for example a part of a fb app won't work with this pull request. I've added the Import Failed label to this pull request so it is easy for someone at fb to find the pull request and check what failed. If you don't see anyone comment in a few days feel free to comment mentioning one of the core contributors to the project so they get a notification.

[mkonicek]

@olofd It looks like this needs rebasing, sorry about that.

[lacker]

Hey, this app looks cool and showcaseworthy but I slightly changed up the format. Sorry for the conflict. Is there something to link to like a newspaper article that covers this app? Or any technical post about building it? See #8263 for the new showcase data format.

[hramos]

@olofd do you still want to merge this?