Provide a more modern way to load packages owning a set of files
Summary:
Ref T8320. Ref T8004. This just tries to generally modernize
It also replaces the nonfunctional "Find Owners" link with a new property that just shows owning packages.
Test Plan:
- Created and edited packages.
{F720478}
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T8004, T8320
Differential Revision: https://secure.phabricator.com/D13911