R1:4e14b3f3a507

Use modern layout in Phame Blog management

Summary: Uses PHUITwoColumnView in Blog Manage and Blog Picture. Ref T9897

Test Plan: Use each page.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T9897

Differential Revision: https://secure.phabricator.com/D16126