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The description of `Control._has_point(position)`-virtual function is outdated likely due to #66688.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

-
Vector2(-1, 0),
		Vector2(0, -1),
		Vector2(1, 0),
		Vector2(0, 1)
	};
	Vector2 vdir = dir[p_side];
	real_t maxd = -1e7;
	for (int i = 0; i < 4; i++) {
		real_t d = vdir.dot(points[i]);
		if (d > maxd) {
			maxd = d;
		}
	}
	Node *base = this;
	while (base) {
		Control *c = Object::cast_to<Control>(base);
		if (c) {
			if (c->data.RI) {
				break;
			}
		}
		base = base->get_parent();
	}
	if (!base) {
		return nullptr;
	}
	_window_find_focus_neighbor(vdir, base, points, maxd, dist, &result);
	return result;
}
void Control::_window_find_focus_neighbor(const Vector2 &p_dir, Node *p_at, const Point2 *p_points, real_t p_min, real_t &r_closest_dist, Control **r_closest) {