Bump jquery version

www/index.html

@@ -164,7 +164,7 @@
     <script src="qtdesignviewer.js"></script>
     <script src="scripts/script.js" type="text/javascript"></script>
     <script src="qtloader.js" type="text/javascript"></script>
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.0/jquery.min.js"></script>
     <script type="text/javascript" src="https://www.qt.io/hubfs/qt-design-system/qt-design-system-1.1.0.js"></script>
   </body>
 </html>