Prevent "Manage" profile menu items from being hidden

Summary: Ref T10054. Prevent users from removing this item and locking themselves out of the system unless they can guess the URI.

Test Plan: Tried to disable "Manage", wasn't permitted to.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10054

Differential Revision: https://secure.phabricator.com/D15113

src/applications/project/profilepanel/PhabricatorProjectManageProfilePanel.php

@@ -13,6 +13,11 @@ final class PhabricatorProjectManageProfilePanel
     return pht('Manage');
   }
 
+  public function canHidePanel(
+    PhabricatorProfilePanelConfiguration $config) {
+    return false;
+  }
+
   public function canMakeDefault(
     PhabricatorProfilePanelConfiguration $config) {
     return true;