text: let arrow = document.querySelectorAll(".arrow");
  for (var i = 0; i < arrow.length; i++) {
    arrow[i].addEventListener("click", (e)=>{
   let arrowParent = e.target.parentElement.parentElement;
   arrowParent.classList.toggle("showMenu");
    });
  }
  
  let sidebar = document.querySelector(".sidebar");
  let sidebarBtn = document.querySelector(".bx-menu");
  console.log(sidebarBtn);
  sidebarBtn.addEventListener("click", ()=>{
    sidebar.classList.toggle("close");
  });
  