render_tag -> tag: fix some more callsites

Summary:
  - Crumbs is straightforward.
  - Maniphest does a lot of string construction which isn't i18n or safehtml aware. I cheated under the theory that we'll resolve this properly in {T2217}.

Test Plan: Looked at crumbs and Maniphest.

Reviewers: vrana

Reviewed By: vrana

CC: aran

Maniphest Tasks: T2432

Differential Revision: https://secure.phabricator.com/D4748