Page break - Prev page button label/ Next page button label

Hello there,

When you add a page break in the webform if you entered you're own custom label for (Prev page button label) or for (Prev page button label) the value that you entered will not be translatable! i tried to put a t() in the hook_form_alter() but it didn't work out, after looking into it i noticed that there is no t() in the webform.module file for this custom label:-

please check webform_client_form function in the webform.module file, line 1937

if ($component['type'] == 'pagebreak') {
          $next_page_labels[$component['page_num'] - 1] = !empty($component['extra']['next_page_label']) ? $component['extra']['next_page_label'] : t('Next Page >');
          $prev_page_labels[$component['page_num']] = !empty($component['extra']['prev_page_label']) ? $component['extra']['prev_page_label'] : t('< Previous Page');
        }