MS_coder

Just wanted to add to this since I was referencing the same question and couldn't get the code to work. ( It seems obvious now, but wasn't thinking at the time. )  In order for the code to work you need to load the jquery into the header code injection.  So in all: 

Header add -

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.0/jquery.min.js"></script>

Footer add - 

<script>
  $(document).ready(function(){
  $("h2.list-item-content__title").each(function(){
    $(this).html($(this).text());
  });
});
</script>

Hope that helps.