Replicate SSR guide to data page for Nuxt. Exiting content is incorrect.

**Describe the content issue**:
Currently, there is Nuxt Universal rendering support for Amplify (which includes some SSR) and there is documentation for it at https://docs.amplify.aws/javascript/build-a-backend/data/connect-from-server-runtime/nuxtjs-server-runtime/. However, it is not mentioned at all in the https://docs.amplify.aws/javascript/build-a-backend/server-side-rendering/ page. This makes it seem that support for Nuxt 3 was dropped in Gen 2 (Gen 1 has a link in https://docs.amplify.aws/gen1/javascript/build-a-backend/server-side-rendering/ top page).

I propose at a minimum just having a link in the SSR section that points to the same page as in the data section.

**URL page where content issue is**:

https://docs.amplify.aws/javascript/build-a-backend/server-side-rendering/nuxt should point to a "gen 2" page and be shown in the side nav.