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The description of `Control._has_point(position)`-virtual function is outdated likely due to #66688.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

-
if (data.parent_canvas_item) {
				data.parent_canvas_item->connect("item_rect_changed", callable_mp(this, &Control::_size_changed));
			} else {
				
				Viewport *viewport = get_viewport();
				ERR_FAIL_COND(!viewport);
				viewport->connect("size_changed", callable_mp(this, &Control::_size_changed));
			}
		} break;
		case NOTIFICATION_EXIT_CANVAS: {
			if (data.parent_canvas_item) {
				data.parent_canvas_item->disconnect("item_rect_changed", callable_mp(this, &Control::_size_changed));
				data.parent_canvas_item = nullptr;
			} else {
				
				Viewport *viewport = get_viewport();
				ERR_FAIL_COND(!viewport);
				viewport->disconnect("size_changed", callable_mp(this, &Control::_size_changed));
			}
			if (data.RI) {
				get_viewport()->_gui_remove_root_control(data.RI);
				data.RI = nullptr;
			}
			data.parent_canvas_item = nullptr;
			data.is_rtl_dirty = true;
		} break;
		case NOTIFICATION_MOVED_IN_PARENT: {
			
			
			Control *parent_control = get_parent_control();