Locales are imported in app.vue file like this:

import { en as nuxtUiEn, ru as nuxtUiRu } from '@nuxt/ui/locale'

1. Run pnpm dlx nuxi analyze.
2. Check client bundle, all locales are included.
3. Remove rolldown-vite override in package.json and run pnpm i.
4. Run pnpm dlx nuxi analyze again.
5. Check client bundle, only imported locales are present.