Use ApplicationSearch in Owners
Summary:
Ref T8320. Modernize search and major interfaces.
This slightly regresses some list view and search features; I'll probably restore some later (once the Query has proper needX(...) methods) and drop the rest.
Test Plan: Browsed, edited, deleted, and created packages.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T8320
Differential Revision: https://secure.phabricator.com/D13024