test: use configured DOM environment

apps/nextjs/src/app/[locale]/_client-providers/query-persistence.spec.ts

@@ -1,5 +1,3 @@
-// @vitest-environment jsdom
-
 import { dehydrate, QueryClient } from "@tanstack/react-query";
 import type { PersistedClient } from "@tanstack/react-query-persist-client";
 import { persistQueryClientRestore } from "@tanstack/react-query-persist-client";

packages/widgets/src/common/widget-time-context.spec.tsx

@@ -1,5 +1,3 @@
-// @vitest-environment jsdom
-
 import { act } from "react";
 import { hydrateRoot } from "react-dom/client";
 import { renderToString } from "react-dom/server";