Show magic "Home" menu item for logged-out users on public installs

Summary:
Ref T12174. Setup is:

  - Allow public access.
  - Don't touch the default menu.
  - Visit `/` while logged out.

Currently, you see "magic home" as content, but don't actually see the menu item.

Instead, show the menu item.

Test Plan: {F2557000}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T12174

Differential Revision: https://secure.phabricator.com/D17288

src/applications/home/menuitem/PhabricatorHomeProfileMenuItem.php

@@ -56,10 +56,6 @@ final class PhabricatorHomeProfileMenuItem
     PhabricatorProfileMenuItemConfiguration $config) {
     $viewer = $this->getViewer();
 
-    if (!$viewer->isLoggedIn()) {
-      return array();
-    }
-
     $name = $this->getDisplayName($config);
     $icon = 'fa-home';
     $href = $this->getItemViewURI($config);