How to have cursor change with buttonclick

So first I wanted to explain my problem:

I have set up a switcher on my website to toggle between normal mouse / pointer & a Lego hand as a cursor and a head as pointer. However, I can only get the cursor to show when clicking the switcher. How can I also add this pointer

(cursor: url(https://cdn.shopify.com/s/files/1/0571/7137/8349/files/pointer.png?v=1644096049), pointer;)

It should be assigned to the following classes:

a, button, input, input, button, a, input, .slider, .round

I have then also added a snippet, which lets the switcher / checkbox stay on checked…
(You can see that on this video [password is 12345678]: https://easyupload.io/gknxoi)

However after a reload of the page for example, the switcher stays on checked, but the cursor doesnt show up…

I hope anybody can help me with this!!!

    < script >


      var cbs = document.querySelectorAll('input[type=checkbox]');
    for (var i = 0; i < cbs.length; i++) {
      cbs[i].addEventListener('change', function() {
        if (this.checked) {
          document.body.style.cursor =
            "url(https://cdn.shopify.com/s/files/1/0571/7137/8349/files/cursor.png?v=1644096068), auto";
        } else {
          document.body.style.cursor = "default";
        }
      });
    }


    $(function() {
      var test = localStorage.input === 'true' ? true : false;
      $('input').prop('checked', test || false);
    });

    $('input').on('change', function() {
      localStorage.input = $(this).is(':checked');
      console.log($(this).is(':checked'));
    });

    <
    /script>
    .switcheronheader {
      position: relative;
      display: inline-block;
      width: 30px;
      height: 17px;
      margin-bottom: 2px;
    }

    .mouseswitcher {
      /*   border-left: 1px solid #248751; */
      padding-left: 20px;
    }

    .switcheronheader input {
      opacity: 0;
      width: 0;
      height: 0;
    }

    .slider {
      position: absolute;
      cursor: pointer;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-color: #ccc;
      -webkit-transition: .4s;
      transition: .4s;
    }

    .slider:before {
      position: absolute;
      content: "";
      height: 13px;
      width: 13px;
      left: 2px;
      bottom: 2px;
      background-color: white;
      -webkit-transition: .4s;
      transition: .4s;
    }

    input:checked+.slider {
      background-color: #248751;
    }

    input:focus+.slider {
      box-shadow: 0 0 1px #2196F3;
    }

    input:checked+.slider:before {
      -webkit-transform: translateX(13px);
      -ms-transform: translateX(13px);
      transform: translateX(13px);
    }

    .slider.round {
      border-radius: 34px;
    }

    .slider.round:before {
      border-radius: 50%;
    }
    <div class="mouseswitcher">

      <label class="switcheronheader">
                 <input type="checkbox" id="overheaderswitch">
                 <span class="slider round"></span>
            </label>

    </div>