Remove useSyncExternalStore shim

Author: zoontek

src/createRouter.ts

@@ -1,5 +1,5 @@
 import { useCallback, useContext, useMemo } from "react";
-import { useSyncExternalStoreWithSelector } from "use-sync-external-store/shim/with-selector";
+import { useSyncExternalStoreWithSelector } from "use-sync-external-store/with-selector";
 import { concatRoutes } from "./concatRoutes";
 import { areRouteEqual, first, identity } from "./helpers";
 import {