CanvasItem's visible property documentation is misleading/confusing

Godot 4.2

The current description, if read without the context of `is_visible_in_tree()`'s documentation, implies that this is only true if `is_visible_in_tree()` also returns `true`, when it is actually the opposite. The first sentence confuses this with `is_visible_in_tree()`, as the node is not actually drawn unless `is_visible_in_tree()` also returns true. The use of "visible" in the second sentence then implies that `is_visible_in_tree()` is a pre-requesite for this property. I propose changing it to be something more like this:

If `true` this **CanvasItem** could be drawn. It will only actually be drawn if all of it's ancestors are visible as well (in other words, [is_visible_in_tree](https://docs.godotengine.org/en/stable/classes/class_canvasitem.html#class-canvasitem-method-is-visible-in-tree) also returns true)

With the note at the end kept, of course.

[CanvasItem.visible](https://docs.godotengine.org/en/stable/classes/class_canvasitem.html#class-canvasitem-property-visible)