Add ability to nest pages similar to components

[abid-din-akqa]

I'm trying to use Astrum for both documentation and as a pattern/component library. As such, it'd be great to be able to nest my documentation pages similarly to how the component groupings currently work.

This is the structure I'd be looking to create for my pages:

├── Installation
├── Structural Overview
│   ├── Templates
│   │   ├── Global
│   │   ├── Specific
│   ├── Styling
│   │   ├── Global
│   │   ├── Specific
│   ├── Content
├── Build Tool

At present, it doesn't look like the ability to nest pages is supported - but it'd be great to do so!

[RyanHavoc]

@abid-din-akqa I like the idea. I'll add it to our development roadmap.

[Anjanas-dh]

Was looking for this! This can give more structure to the library when needed.

It's not approved yet for the roadmap. So I'll keep watching this issue! 🍡

BTW: great library guys