Refactor: UmiJs -> Vite (#12410)

### What problem does this PR solve?

Refactor: UmiJs -> Vite+React

### Type of change

- [x] Refactoring

---------

Co-authored-by: Liu An <asiro@qq.com>

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

@@ -14,7 +14,7 @@ import 'katex/dist/katex.min.css'; // `rehype-katex` does not import the CSS for
 
 import { preprocessLaTeX } from '@/utils/chat';
 import { useIsDarkTheme } from '../theme-provider';
-import styles from './index.less';
+import styles from './index.module.less';
 
 const HighLightMarkdown = ({
   children,