Download full diff button as hyperlink

Author: gaurav-dev02

templates/test/by_id.html

@@ -286,10 +286,8 @@ <h6>There are no tests executed in this category.</h6>
                     reveal.setAttribute('data-reveal', '');
                     reveal.innerHTML = resp;
                     reveal.innerHTML +=
-                        '<a href="'+diff_download_url+'" target="_blank">' +
-                            '<button type="button" class="button">' +
+                        '<a href="' + diff_download_url + '" target="_blank" class="diff-download-link">' +
                             'Download Full Diff' +
-                            '</button>' +
                         '</a>, only first 50 shown here.';
                     reveal.innerHTML +=
                         '<button class="close-button" data-close aria-label="Cancel" type="button">' +