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The description of `Control._has_point(position)`-virtual function is outdated likely due to #66688.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

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### Minimal reproduction project

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Control *c = nullptr;
		Node *n = get_node(data.focus_neighbor[p_side]);
		if (n) {
			c = Object::cast_to<Control>(n);
			ERR_FAIL_COND_V_MSG(!c, nullptr, "Neighbor focus node is not a control: " + n->get_name() + ".");
		} else {
			return nullptr;
		}
		bool valid = true;
		if (!c->is_visible()) {
			valid = false;
		}
		if (c->get_focus_mode() == FOCUS_NONE) {
			valid = false;
		}
		if (valid) {
			return c;
		}
		c = c->_get_focus_neighbor(p_side, p_count + 1);
		return c;
	}
	real_t dist = 1e7;
	Control *result = nullptr;
	Point2 points[4];
	Transform2D xform = get_global_transform();
	points[0] = xform.xform(Point2());
	points[1] = xform.xform(Point2(get_size().x, 0));
	points[2] = xform.xform(get_size());
	points[3] = xform.xform(Point2(0, get_size().y));
	const Vector2 dir[4] = {