Normalize 'Archived' states in object headers

Summary: Quick pass at cleaning up language, icons, colors for 'Archive' and 'Activate' on various objects.

Test Plan:
Tested archiving and activating each object changed.

{F262694}

{F262697}

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D11256

src/applications/project/controller/PhabricatorProjectArchiveController.php

@@ -52,9 +52,9 @@ final class PhabricatorProjectArchiveController
     }
 
     if ($project->isArchived()) {
-      $title = pht('Really unarchive project?');
+      $title = pht('Really activate project?');
       $body = pht('This project will become active again.');
-      $button = pht('Unarchive Project');
+      $button = pht('Activate Project');
     } else {
       $title = pht('Really archive project?');
       $body = pht('This project will be moved to the archive.');