fix: prevent dash from appearing in page title when an entity does no…

…t have a name

src/site/components/com_base/dispatchers/default.php

@@ -120,7 +120,7 @@ public function setPageTitle(KCommandContext $context)
             $description = $item->body;
         }
 
-        $title = implode(' - ', array_unique($title));
+        $title = implode(' - ', array_filter(array_unique($title)));
         $document->setTitle($title);
         $description = preg_replace('/\s+/', ' ', $description);
         $description = htmlspecialchars($view->getTemplate()->renderHelper('text.truncate', $description, array('length' => 160)));