Components tree view

[thetarnav]

In addition to the Structure view, (the current tree structure of the reactive owners) there should be a view representing the components hierarchy.
This will be a separate view, but it will share the same functionality as the Structure view. It may be even implemented in the same "window".
The components view will probably include HTML Elements, like the svelte's one: (just without attributes, textContent and other svelte things)