call client_set-size() if client has a resize

dwl.c

@@ -784,6 +784,8 @@ commitnotify(struct wl_listener *listener, void *data)
 	/* mark a pending resize as completed */
 	if (c->resize && c->resize <= c->surface.xdg->current.configure_serial)
 		c->resize = 0;
+	else if (c->resize)
+		c->resize = client_set_size(c, c->geom.width - 2 * c->bw, c->geom.height - 2 * c->bw);
 }
 
 void