import updated ligandENV js file

demo/demo_component.html

@@ -14,7 +14,7 @@
   <script src="https://cdn.jsdelivr.net/npm/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"
     charset="utf-8"></script>
   <!--PDBe interactions component-->
-  <script type="module" src="http://127.0.0.1:8080/pdb-ligand-env-component-1.0.0-min.js"></script>
+  <script type="module" src="http://127.0.0.1:8080/pdb-ligand-env-component-2.0.0-min.js"></script>
 
 </head>