Rename bootstrap with version so we don't have to cache bust it, so that .map loading works.

web/skins/classic/includes/functions.php

@@ -916,7 +916,7 @@ function xhtmlFooter() {
 ?>
   <script src="<?php echo cache_bust('skins/'.$skin.'/js/jquery.min.js'); ?>"></script>
   <script src="skins/<?php echo $skin; ?>/js/jquery-ui-1.12.1/jquery-ui.min.js"></script>
-  <script src="<?php echo cache_bust('skins/'.$skin.'/js/bootstrap.min.js'); ?>"></script>
+  <script src="skins/<?php echo $skin; ?>/js/bootstrap-4.5.0.min.js"></script>
 <?php echo output_script_if_exists(array(
   'js/tableExport.min.js',
   'js/bootstrap-table.min.js',