Normalize ActionList dropdowns
Summary: Normalizes the display of the ActionList menu on mobile and tablet, shifts them to being actual menu dropdowns instead of an inline list.
Test Plan:
Verify DocumentView, Profiles, and Tasks all display the Action Menu in an identical way.
Reviewers: btrahan, epriestley
Reviewed By: epriestley
Subscribers: Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D12373