Fixes window_id being erased when emulating mouse events from touch events

Author: alexkar598

core/input/input.cpp

@@ -690,6 +690,7 @@ void Input::_parse_input_event_impl(const Ref<InputEvent> &p_event, bool p_is_em
 				button_event->set_canceled(st->is_canceled());
 				button_event->set_button_index(MouseButton::LEFT);
 				button_event->set_double_click(st->is_double_tap());
+				button_event->set_window_id(st->get_window_id());
 
 				BitField<MouseButtonMask> ev_bm = mouse_button_mask;
 				if (st->is_pressed()) {
@@ -727,6 +728,7 @@ void Input::_parse_input_event_impl(const Ref<InputEvent> &p_event, bool p_is_em
 			motion_event->set_velocity(sd->get_velocity());
 			motion_event->set_screen_velocity(sd->get_screen_velocity());
 			motion_event->set_button_mask(mouse_button_mask);
+			motion_event->set_window_id(sd->get_window_id());
 
 			_parse_input_event_impl(motion_event, true);
 		}