1. Add items
 function handleNewItemSubmit() {
  // this function will be responsible for when users add a new shopping list item
  //When the user adds an item to the list via the input .shopping-list-entry, add that item to the store, generate a unique id, and display it.
  console.log('`handleNewItemSubmit` ran');
}

2. Checked items
function handleItemCheckClicked() {
  // this function will be responsible for when users click the "check" button on
  // a shopping list item.

  //When the shopping-item-toggle button is clicked change the class of the li element to .shopping-item__checked
  console.log('`handleItemCheckClicked` ran');
}

3. Delete items
function handleDeleteItemClicked() {
  // this function will be responsible for when users want to delete a shopping list
  // item

  //When the delete-item button is clicked, remove the li element from the ul.
  console.log('`handleDeleteItemClicked` ran')
}