fix(mian): Add silence files; add casting

Everything now casts right at the SQL interpolation point

src/Form/DataHandler/CustomHtmlBlockDataHandler.php

@@ -135,7 +135,7 @@ final class CustomHtmlBlockDataHandler implements FormDataHandlerInterface
     {
         $maxOrdering = Db::getInstance()->getValue(
             'SELECT MAX(`ordering`) FROM `' . _DB_PREFIX_ . 'ws_customhtml`
-             WHERE `id_ws_customhtml_group` = ' . $idGroup
+             WHERE `id_ws_customhtml_group` = ' . (int) $idGroup
         );
 
         return $maxOrdering === false || $maxOrdering === null ? 0 : ((int) $maxOrdering + 1);