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The description of `Control._has_point(position)`-virtual function is outdated likely due to #66688.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

-

### Minimal reproduction project

-
Control *from = const_cast<Control *>(this);
	while (true) {
		
		if (!data.focus_next.is_empty()) {
			Node *n = get_node(data.focus_next);
			Control *c;
			if (n) {
				c = Object::cast_to<Control>(n);
				ERR_FAIL_COND_V_MSG(!c, nullptr, "Next focus node is not a control: " + n->get_name() + ".");
			} else {
				return nullptr;
			}
			if (c->is_visible() && c->get_focus_mode() != FOCUS_NONE) {
				return c;
			}
		}
		
		Control *next_child = nullptr;
		for (int i = 0; i < from->get_child_count(); i++) {
			Control *c = Object::cast_to<Control>(from->get_child(i));
			if (!c || !c->is_visible_in_tree() || c->is_set_as_top_level()) {
				continue;
			}
			next_child = c;
			break;
		}
		if (!next_child) {
			next_child = _next_control(from);
			if (!next_child) {