fix: mathquill import in index.html

Author: Speedrunyourknowledge

calc-frontend/index.html

@@ -19,8 +19,8 @@
     <div id="root"></div>
     <script src="https://cdn.plot.ly/plotly-3.0.0.min.js"></script>
     <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
-    <script src="./mathquill/build/mathquill.js"></script>
 
+    <script type="module" src="/mathquill/build/mathquill.js"></script>
     <script type="module" src="/src/main.tsx"></script>
   </body>
 </html>