Typescript code added to show/hide download button

Author: Auldrin-Possa

DigitalLearningSolutions.Web/Scripts/certificate/certificate.ts

@@ -0,0 +1,9 @@
+window.addEventListener('load', () => {
+  const button = document.getElementById('btn') as HTMLButtonElement | null;
+  if (button) {
+    button.style.display = 'block';
+    button.addEventListener('click', () => {
+      button.style.display = 'none';
+    });
+  }
+});

DigitalLearningSolutions.Web/Views/Certificate/Index.cshtml

@@ -101,3 +101,4 @@
     </div>
 </body>
 </html>
+<script src="@Url.Content("~/js/certificate/certificate.js")" asp-append-version="true"></script>