Keyboard Accessibility in Devtools

[mauryapari]

In the components tab, I would like to be able to navigate through the components with up/down keyboard arrows, and expand/collapse the tree of components with the left/right arrow keys.

Maybe also every time that a route is visited, automatically expand the tree up to the route's component, so its already selected and ready to be explored on the right panel.

Thanks!

Originally posted by @malditochecho in #111 (comment)