Component to list Subpages

[nikischin]

Is your feature request related to a problem?
I would like to list all subpages within an article in the docs theme. As my subpages could change I do not want to also modify the list within the upper component.

There are similar examples found at https://nextra.site/docs/docs-theme or https://nextra.site/docs/guide/built-ins which were solved using a manual list of Cards

Describe the solution you'd like
A component, which does list all the subpages for the user.

Describe alternatives you've considered
Building my own custom component for it. But seems like there would be some general usage for this.

Additional context

[dimaMachina]

this is already a feature of Nextra 4, take a look at example from nextra.site

https://github.com/shuding/nextra/blob/v4-v2/docs/app/docs/built-ins/page.mdx
https://github.com/shuding/nextra/blob/v4-v2/docs/app/docs/advanced/page.mdx
https://github.com/shuding/nextra/blob/v4-v2/docs/app/docs/blog-theme/page.mdx
https://github.com/shuding/nextra/blob/v4-v2/docs/app/docs/built-ins/page.mdx
https://github.com/shuding/nextra/blob/v4-v2/docs/app/docs/docs-theme/page.mdx
https://github.com/shuding/nextra/blob/v4-v2/docs/app/docs/guide/page.mdx