Pass the window along with evdev touch events

Fixes https://github.com/libsdl-org/SDL/issues/14644

(cherry picked from commit 518c98ea01e490974d6cb0dd5520d5c5d4d8e302)

src/core/linux/SDL_evdev.c

@@ -546,16 +546,16 @@ void SDL_EVDEV_Poll(void)
                              * be window-relative in that case. */
                             switch (item->touchscreen_data->slots[j].delta) {
                             case EVDEV_TOUCH_SLOTDELTA_DOWN:
-                                SDL_SendTouch(SDL_EVDEV_GetEventTimestamp(event), item->fd, item->touchscreen_data->slots[j].tracking_id, NULL, SDL_EVENT_FINGER_DOWN, norm_x, norm_y, norm_pressure);
+                                SDL_SendTouch(SDL_EVDEV_GetEventTimestamp(event), item->fd, item->touchscreen_data->slots[j].tracking_id, mouse->focus, SDL_EVENT_FINGER_DOWN, norm_x, norm_y, norm_pressure);
                                 item->touchscreen_data->slots[j].delta = EVDEV_TOUCH_SLOTDELTA_NONE;
                                 break;
                             case EVDEV_TOUCH_SLOTDELTA_UP:
-                                SDL_SendTouch(SDL_EVDEV_GetEventTimestamp(event), item->fd, item->touchscreen_data->slots[j].tracking_id, NULL, SDL_EVENT_FINGER_UP, norm_x, norm_y, norm_pressure);
+                                SDL_SendTouch(SDL_EVDEV_GetEventTimestamp(event), item->fd, item->touchscreen_data->slots[j].tracking_id, mouse->focus, SDL_EVENT_FINGER_UP, norm_x, norm_y, norm_pressure);
                                 item->touchscreen_data->slots[j].tracking_id = 0;
                                 item->touchscreen_data->slots[j].delta = EVDEV_TOUCH_SLOTDELTA_NONE;
                                 break;
                             case EVDEV_TOUCH_SLOTDELTA_MOVE:
-                                SDL_SendTouchMotion(SDL_EVDEV_GetEventTimestamp(event), item->fd, item->touchscreen_data->slots[j].tracking_id, NULL, norm_x, norm_y, norm_pressure);
+                                SDL_SendTouchMotion(SDL_EVDEV_GetEventTimestamp(event), item->fd, item->touchscreen_data->slots[j].tracking_id, mouse->focus, norm_x, norm_y, norm_pressure);
                                 item->touchscreen_data->slots[j].delta = EVDEV_TOUCH_SLOTDELTA_NONE;
                                 break;
                             default: