ui: highlighter: support line-numbers

packages/ui-default/components/highlighter/highlighter.page.ts

@@ -10,6 +10,7 @@ const highlighterPage = new AutoloadPage('highlighterPage', () => {
         const m = language.match(/language-([a-z0-9]+)(\|[\d,-]+)/);
         if (m?.[2]) {
           $(code).parent().attr('data-line', m[2].substring(1));
+          if (language.includes('line-numbers')) $(code).parent().addClass('line-numbers');
           $(code).attr('class', `language-${m[1]}`);
         }
       });