Feature: Hierarchy focus

[garthdw]

Currently when creating a layout that is

root
	- Box (focusable)
		- Input
	- Box (focusable)
		- Text
		- Input

When the input becomes focused, the box loses any indication that it is part of the focus chain.

I have done some exploration into an opt in ancestor focusing implementation. Where we focus each parent that is focusable when focusing on an input. I made it opt in, because it would be a breaking UI change.

Screencast_20260406_145554.mp4