### 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The description of `Control._has_point(position)`-virtual function is outdated likely due to #66688.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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return is_inside_tree() && get_viewport()->gui_is_drag_successful();
}
void Control::set_focus_mode(FocusMode p_focus_mode) {
	ERR_FAIL_INDEX((int)p_focus_mode, 3);
	if (is_inside_tree() && p_focus_mode == FOCUS_NONE && data.focus_mode != FOCUS_NONE && has_focus()) {
		release_focus();
	}
	data.focus_mode = p_focus_mode;
}
Control::FocusMode Control::get_focus_mode() const {
	return data.focus_mode;
}
bool Control::has_focus() const {
	return is_inside_tree() && get_viewport()->_gui_control_has_focus(this);
}
void Control::grab_focus() {
	ERR_FAIL_COND(!is_inside_tree());
	if (data.focus_mode == FOCUS_NONE) {
		WARN_PRINT("This control can't grab focus. Use set_focus_mode() to allow a control to get focus.");
		return;
	}
	get_viewport()->_gui_control_grab_focus(this);
}
void Control::grab_click_focus() {
	ERR_FAIL_COND(!is_inside_tree());
	get_viewport()->_gui_grab_click_focus(this);
}
void Control::release_focus() {