remove external Sortable js dependency

web/html/config.html

@@ -5,7 +5,6 @@
 		<script src="scripts/config.js" type="module"></script>
 		<script src="scripts/draggable.js" type="module"></script>
 		<script src="modules/Sortable.min.js"></script>
-		<script src="https://cdn.jsdelivr.net/npm/sortablejs@latest/Sortable.min.js"></script>
 		<link rel="modulepreload" href="scripts/utils.js">
 		<link rel="modulepreload" href="scripts/dialog.js">
 		<style>