### Godot version

v4.0.beta16.official [518b9e580]

### System information

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### 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The description of `Control._has_point(position)`-virtual function is outdated likely due to #66688.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 (p_theme_type == StringName() || p_theme_type == get_class_name() || p_theme_type == data.theme_type_variation) {
		if (has_theme_stylebox_override(p_name)) {
			return true;
		}
	}
	List<StringName> theme_types;
	data.theme_owner->get_theme_type_dependencies(this, p_theme_type, &theme_types);
	return data.theme_owner->has_theme_item_in_types(Theme::DATA_TYPE_STYLEBOX, p_name, theme_types);
}
bool Control::has_theme_font(const StringName &p_name, const StringName &p_theme_type) const {
	if (p_theme_type == StringName() || p_theme_type == get_class_name() || p_theme_type == data.theme_type_variation) {
		if (has_theme_font_override(p_name)) {
			return true;
		}
	}
	List<StringName> theme_types;
	data.theme_owner->get_theme_type_dependencies(this, p_theme_type, &theme_types);
	return data.theme_owner->has_theme_item_in_types(Theme::DATA_TYPE_FONT, p_name, theme_types);
}
bool Control::has_theme_font_size(const StringName &p_name, const StringName &p_theme_type) const {
	if (p_theme_type == StringName() || p_theme_type == get_class_name() || p_theme_type == data.theme_type_variation) {
		if (has_theme_font_size_override(p_name)) {
			return true;
		}
	}
	List<StringName> theme_types;
	data.theme_owner->get_theme_type_dependencies(this, p_theme_type, &theme_types);
	return data.theme_owner->has_theme_item_in_types(Theme::DATA_TYPE_FONT_SIZE, p_name, theme_types);
}
bool Control::has_theme_color(const StringName &p_name, const StringName &p_theme_type) const {