Use PHUIRemarkupPreviewPanel in Ponder
Summary:
Ref T3578. Ref T3671. Depends on D6673. Use PHUIRemarkupPreviewPanel (introduced in D6673) to provide question create/edit and answer edit previews in Ponder.
Then delete a million lines of duplicate code.
Test Plan: Edited a question; edited an answer. Saw live previews.
Reviewers: btrahan, Firehed
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T3578, T3671
Differential Revision: https://secure.phabricator.com/D6674