### Godot version

v4.0.beta.custom_build [bb08997b8]

### System information

Ubuntu 22.10 LTS, GTX1060, Vulkan

### Issue description

If you toggle emulate_touch_from_mouse option in ProjectSettings `InputEventMouseMotion`, `InputEventScreenDrag`, `InputEventScreenTouch` passes through `Panel`, afaik this doesn't happen in **`3.x branch`**

how tree looks:
```
- Node
  - Panel(half screen size, to stop input events)
  - Node(captures unhandled inputs)

```
screen separated into 2 sides, left side is Panel, right is empty space, so if you click on Panel you can't get any output from _unhandled_input on Node.

### Steps to reproduce

1. run attachment
2. click and/or scroll with mouse on left side and right side (check output)
3. go to project settings and toggle `emulate touch from mouse`
4. go to step 2 (check output)

### Minimal reproduction project

[New Game Project.zip](https://github.com/godotengine/godot/files/10371324/New.Game.Project.zip)

Rect2 swrect = Rect2i(sw->get_position(), sw->get_size());
					if (!sw->get_flag(Window::FLAG_BORDERLESS)) {
						int title_height = sw->get_theme_constant(SNAME("title_height"));
						swrect.position.y -= title_height;
						swrect.size.y += title_height;
					}
					if (swrect.has_point(viewport_pos)) {
						viewport_under = sw;
						viewport_pos -= sw->get_position();
					}
				}
				if (!viewport_under) {
					
					viewport_under = embedder;
				}
			} else {
				
				Vector2i screen_mouse_pos = DisplayServer::get_singleton()->mouse_get_position();
				DisplayServer::WindowID window_id = DisplayServer::get_singleton()->get_window_at_screen_position(screen_mouse_pos);
				if (window_id != DisplayServer::INVALID_WINDOW_ID) {
					ObjectID object_under = DisplayServer::get_singleton()->window_get_attached_instance_id(window_id);
					if (object_under != ObjectID()) { 
						Window *w = Object::cast_to<Window>(ObjectDB::get_instance(object_under));
						if (w) {
							viewport_under = w;
							viewport_pos = screen_mouse_pos - w->get_position();
						}
					}
				}
			}