Fix file upload redirect URI
Summary: Ref T2625. This is now "query" instead of "filter" with the new search stuff.
Test Plan: Uploaded a file. Grepped for 'file/filter'.
Reviewers: btrahan, chad
Reviewed By: chad
CC: aran
Maniphest Tasks: T2625
Differential Revision: https://secure.phabricator.com/D6105