[Redesign] Update Workboards

Summary: Ref T8099, Cleans up Workboard UI, fixes button icon spacing

Test Plan: Review workboards on desktop, mobile

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T8099

Differential Revision: https://secure.phabricator.com/D13473

src/applications/project/controller/PhabricatorProjectBoardController.php

@@ -7,6 +7,7 @@ abstract class PhabricatorProjectBoardController
     $id = $project->getID();
     $nav = parent::buildIconNavView($project);
     $nav->selectFilter("board/{$id}/");
+    $nav->addClass('project-board-nav');
     return $nav;
   }
 }