refactor(ui): adjust global navigation bar style (#13419)

### What problem does this PR solve?

Renovate global navigation bar, align styles to the design.
(May causes minor layout issues in sub-pages, will check and fix soon)

### Type of change

- [x] Refactoring

web/src/components/highlight-markdown/index.tsx

@@ -19,8 +19,10 @@ import { useIsDarkTheme } from '../theme-provider';
 import styles from './index.module.less';
 
 const HighLightMarkdown = ({
+  className,
   children,
 }: {
+  className?: string;
   children: string | null | undefined;
 }) => {
   const isDarkTheme = useIsDarkTheme();