List child classes in the sidebar #1201
Description
With #1183, it's now easier to navigate up an inheritance chain, which is great. But it also makes the lack of downward navigation apparent. Therefore, I think it may be good to also support listing child classes in the sidebar.
- I think we can start with just 1 level of child classes
- For
Object, we may need some special handling? - Unlike the ancestors list, child classes should probably be folded by default