fix: add react-helmet-async for alias

packages/preset-umi/src/features/vite/vite.ts

@@ -1,4 +1,5 @@
 import type { IApi } from '../../types';
+import { isWindows } from '../../utils/platform';
 
 export default (api: IApi) => {
  api.describe({
@@ -19,6 +20,9 @@ export default (api: IApi) => {
 
  api.modifyConfig((memo) => {
  // like vite, use to pre-bundling dependencies in vite mode
+ if (isWindows) {
+ memo.alias['react-helmet-async'] = require.resolve('react-helmet-async');
+ }
  memo.alias['@fs'] = api.cwd;
  return memo;
  });