R1:3bc2db199a49

Add a Stacked view for PropertyList

Summary: Turns a Property List into a stacked view like on tablet/mobile. Useful for where text is longer.

Test Plan:
Test a Herald Transcript page

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Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D8891