Clean up the Diffusion search UI a little bit
Summary:
Ref T156. @vlada recently implemented filename search in Diffusion, this cleans up the UI a little bit:
- Instead of showing one search box with two different buttons, let the submit buttons appear to the right of the text boxes and separate the search modes.
- Clean up the results a little bit (don't show columns which don't exist).
Test Plan: {F107260}
Reviewers: vlada, btrahan, chad
Reviewed By: chad
CC: vlada, chad, aran
Maniphest Tasks: T156
Differential Revision: https://secure.phabricator.com/D8125