Wrap really long text properly in diffs
Summary: Fixes T11236, breaks long words and inlines the spans.
Test Plan:
Use a diff with super long text like SSH keys, set Font to 24/48 Impact
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin
Maniphest Tasks: T11236
Differential Revision: https://secure.phabricator.com/D16198