Clean up Project Members UI

Summary:
 - Better spacing for images
 - Remove border
 - White BG on Members page

Test Plan: Review Projects / Project Home / Project Members

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D15118

src/applications/project/controller/PhabricatorProjectProfileController.php

@@ -49,12 +49,14 @@ final class PhabricatorProjectProfileController
       ->setUser($viewer)
       ->setProject($project)
       ->setLimit(5)
+      ->setBackground(PHUIBoxView::GREY)
       ->setUserPHIDs($project->getMemberPHIDs());
 
     $watcher_list = id(new PhabricatorProjectWatcherListView())
       ->setUser($viewer)
       ->setProject($project)
       ->setLimit(5)
+      ->setBackground(PHUIBoxView::GREY)
       ->setUserPHIDs($project->getWatcherPHIDs());
 
     $nav = $this->getProfileMenu();