Divi and ACF gallery for posts

Question

So im currently working on a site, ive been asked to make it with divi, however they want a gallery on posts that allows for custom images per post. I currently have this from a site i made it for in the past which i no longer have access to

<script>
(function($) {
  $(document).ready(function() {
     $('<span class="et-lb-close">M</span>').prependTo('body:not(.et-fb-root-ancestor) [class*="lb-content"]  > .et_pb_row:first-child');
    $('body:not(.et-fb-root-ancestor) [class*="et-lb-content"] ').appendTo('#et-main-area');
    $("[class*='et-lb-btn']").each(function(index, element) {
      var classes = $(element).attr('class').match(/et-lb-btn\-(\w*)/);
      if (classes !== null) {
          $(element).on('click', function(e){
            e.preventDefault();
            $('.et-lb-content-' + classes[1]).toggleClass('et-lb-open');
            $('html').css("overflow-y","hidden")
          });
          $('.et-lb-close').click(function(){
              $("[class*='et-lb-content']").removeClass('et-lb-open');
                $('html').css("overflow-y","initial")
          });
      }
    });
  });
})(jQuery);
</script>

function projgal(){
ob_start();
$images = get_field('project_gallery');
    if( $images ): 
    $button = "et-lb-btn-". 2;
    $content = "et-lb-content-" . 2;
    ?>

<div class="lb-content-2">
        <?php foreach( $images as $image ): ?>

                <div class="<?php echo $button ?>">
                     <img src="<?php echo esc_url($image['sizes']['thumbnail']); ?>" alt="<?php echo esc_attr($image['alt']); ?>" />
                </div>
                <div id="main-area">
                <div class="<?php echo $content?>">
                    <img class="gallery-img modal-img" src="<?php echo esc_url($image['sizes']['thumbnail']); ?>" alt="<?php echo esc_attr($image['alt']); ?>" />
                </div>
                </div>


        <?php 
    $button++;
    $content++;
    endforeach; 
    ?>
    
<?php
    $output = ob_get_clean();
    return $output;
    endif;
}
add_shortcode('projgallery', 'projgal');

I tried my best to recreate what i did for the php back then. I remembered that using a shortcode for it was the easiest way i could include it into the front end for the post template, however i cannot seem to get the close button to load into the site.

Thank you for any help or comments.