Fix result addition

app/templates/jobs/job.html.j2

@@ -206,7 +206,7 @@
         switch(operation.op) {
           case "add":
             if (pathArray[1] === "results") {
-              this.setResult(operation.value);
+              this.setResults([operation.value]);
             }
             break;
           case "delete":
@@ -238,30 +238,20 @@
     }
 
     setResults(results) {
-      let resultElement, resultsElement, resultDownloadElement,
-          resultDownloadButtonElement, resultDownloadButtonIconElement,
-          resultTitleElement;
+      let resultsElement;
 
       resultsElement = document.getElementById("results");
 
       for (let result of results) {
-        resultElement = document.createElement("tr");
-        resultTitleElement = document.createElement("td");
-        resultTitleElement.innerText = result.filename;
-        resultElement.append(resultTitleElement);
-        resultDownloadElement = document.createElement("td");
-        resultDownloadButtonElement = document.createElement("a");
-        resultDownloadButtonElement.classList.add("waves-effect", "waves-light",
-                                                  "btn-small");
-        resultDownloadButtonElement.href = `/jobs/${result.job_id}/results/${result.id}/download`;
-        resultDownloadButtonElement.setAttribute("download", "");
-        resultDownloadButtonIconElement = document.createElement("i");
-        resultDownloadButtonIconElement.classList.add("material-icons");
-        resultDownloadButtonIconElement.innerText = "file_download";
-        resultDownloadButtonElement.append(resultDownloadButtonIconElement);
-        resultDownloadElement.append(resultDownloadButtonElement)
-        resultElement.append(resultDownloadElement);
-        resultsElement.append(resultElement);
+        resultsElement.insertAdjacentHTML("beforeend", `
+          <tr>
+            <td>${result.filename}</td>
+            <td>
+              <a class="btn-small waves-effect waves-light" download href="/jobs/${result.job_id}/results/${result.id}/download">
+                <i class="material-icons">file_download</i>
+              </a>
+            </td>
+          </tr>`);
       }
     }