### Godot version

v4.0.beta16.official [518b9e580]

### System information

-

### Issue description

The description of `Control._has_point(position)`-virtual function is outdated likely due to #66688. 

> Note: If you want to check if a point is inside the control, you can use `get_rect().has_point(point)`.

After #66688, get_rect() returns the Controls rect relative to its parent, while the point is relative to the Control.

Also, the note refers to `point` while it likely should refer to the parameter `position`. That said, in this case, I think the incorrect name is better and the parameter of the function should be changed to`point` to avoid shadowing `Control.position`.

Suggested fixes:
1. Change the note to match the new behavior (`Rect2(Vector2.ZERO, size).has_point(point)` should work; verify) OR introduce `get_local_rect()` that matches the old behavior and recommend using it instead.
2. Change the name of the `position` parameter to `point` in `Control._has_point(position)`

### Steps to reproduce

-

### Minimal reproduction project

-
ERR_FAIL_COND(!is_inside_tree());
	if (!has_focus()) {
		return;
	}
	get_viewport()->gui_release_focus();
}
static Control *_next_control(Control *p_from) {
	if (p_from->is_set_as_top_level()) {
		return nullptr; 
	}
	Control *parent = Object::cast_to<Control>(p_from->get_parent());
	if (!parent) {
		return nullptr;
	}
	int next = p_from->get_index();
	ERR_FAIL_INDEX_V(next, parent->get_child_count(), nullptr);
	for (int i = (next + 1); i < parent->get_child_count(); i++) {
		Control *c = Object::cast_to<Control>(parent->get_child(i));
		if (!c || !c->is_visible_in_tree() || c->is_set_as_top_level()) {
			continue;
		}
		return c;
	}
	
	return _next_control(parent);
}
Control *Control::find_next_valid_focus() const {