Restrict PropertyListView width to just DocumentProView
Summary: Fixes T10409. Long term need to build a proper "PageEngine" of sorts for layouts not needing special magic. For now this just affects a few applications.
Test Plan: View Diffusion, Phriction, Phame, Legalpad, Diviner.
Reviewed By: epriestley
Maniphest Tasks: T10409
Differential Revision: https://secure.phabricator.com/D15328