Fix E2E Tests

cypress/platform/vertices.html

@@ -26,8 +26,8 @@
       A --> B --> C
     </pre>
 
-    <script src="./mermaid.js"></script>
-    <script>
+    <script type="module">
+      import mermaid from './mermaid.esm.mjs';
       function showFullFirstSquad(elemName) {
         console.log('show ' + elemName);
       }