fix: export missing rewriteBasepath function

Author: andorep

packages/react-router/src/index.tsx

@@ -349,7 +349,7 @@ export { Asset } from './Asset'
 export { HeadContent } from './HeadContent'
 export { Scripts } from './Scripts'
 export type * from './ssr/serializer'
-export { composeRewrites } from '@tanstack/router-core'
+export { composeRewrites, rewriteBasepath } from '@tanstack/router-core'
 export type {
   LocationRewrite,
   LocationRewriteFunction,