Fix new settings popup not building js

Author: jjcastro

src/settings/index.html

@@ -37,6 +37,6 @@
       <button type="submit" class="accept">Save</button>
     </form>
 
-    <script src="./main.js"></script>
+    <script type="module" src="./main.ts"></script>
   </body>
 </html>