fix: quiqqer/quiqqer locale and paths adapted to quiqqer/core

ajax/template/LangList.html

@@ -12,7 +12,7 @@
                 <img src="{$path}{$lang}.png"/>
             </span>
             <span class="lcs-menu-list-entry-link-text ">
-                {locale group="quiqqer/quiqqer" var="language.$lang"}
+                {locale group="quiqqer/core" var="language.$lang"}
             </span>
 
         </a>