### 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The description of `Control._has_point(position)`-virtual function is outdated likely due to #66688.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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if (is_inside_tree()) {
		data.theme_owner->propagate_theme_changed(this, this, true, false);
	}
}
void Control::_notify_theme_override_changed() {
	if (!data.bulk_theme_override && is_inside_tree()) {
		notification(NOTIFICATION_THEME_CHANGED);
	}
}
void Control::_invalidate_theme_cache() {
	data.theme_icon_cache.clear();
	data.theme_style_cache.clear();
	data.theme_font_cache.clear();
	data.theme_font_size_cache.clear();
	data.theme_color_cache.clear();
	data.theme_constant_cache.clear();
}
void Control::_update_theme_item_cache() {
}
void Control::set_theme_owner_node(Node *p_node) {
	data.theme_owner->set_owner_node(p_node);
}
Node *Control::get_theme_owner_node() const {
	return data.theme_owner->get_owner_node();
}
bool Control::has_theme_owner_node() const {
	return data.theme_owner->has_owner_node();
}
void Control::set_theme(const Ref<Theme> &p_theme) {