R1:7ce2ad294ff8

Separate out PhameDescriptionView

Summary: Make this function re-usable in other views. Ref T9897

Test Plan: View a blog, see the same information

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T9897

Differential Revision: https://secure.phabricator.com/D14658