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The description of `Control._has_point(position)`-virtual function is outdated likely due to #66688.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

-
ERR_FAIL_INDEX_V(int(p_side), 4, 0.0);
	return data.anchor[p_side];
}
void Control::set_offset(Side p_side, real_t p_value) {
	ERR_FAIL_INDEX((int)p_side, 4);
	if (data.offset[p_side] == p_value) {
		return;
	}
	data.offset[p_side] = p_value;
	_size_changed();
}
real_t Control::get_offset(Side p_side) const {
	ERR_FAIL_INDEX_V((int)p_side, 4, 0);
	return data.offset[p_side];
}
void Control::set_anchor_and_offset(Side p_side, real_t p_anchor, real_t p_pos, bool p_push_opposite_anchor) {
	set_anchor(p_side, p_anchor, false, p_push_opposite_anchor);
	set_offset(p_side, p_pos);
}
void Control::set_begin(const Size2 &p_point) {
	ERR_FAIL_COND(!isfinite(p_point.x) || !isfinite(p_point.y));
	if (data.offset[0] == p_point.x && data.offset[1] == p_point.y) {
		return;
	}
	data.offset[0] = p_point.x;
	data.offset[1] = p_point.y;
	_size_changed();
}
Size2 Control::get_begin() const {