fix(tags): selected tags not being highlighted in test result (@Leonabcd123) (#7312)

### Description

Update `data-active-tag-ids` instead of `active-tag-ids`, extract
updating part from if statement. Fixes the following bug:

- Create a tag
- Complete a test
- Click on the edit tags button
- Click on the newly created tag
- Click on the edit tags button again
- The tag won't be highlighted in yellow

Co-authored-by: Jack <jack@monkeytype.com>

frontend/src/ts/test/result.ts

@@ -1262,11 +1262,12 @@ export function updateTagsAfterEdit(
 
     // $(`.pageTest #result .tags .bottom`).html(tagNames.join("<br>"));
     $(`.pageTest #result .tags .bottom`).append(html);
-    $(`.pageTest #result .tags .top .editTagsButton`).attr(
-      "active-tag-ids",
-      tagIds.join(","),
-    );
   }
+
+  $(`.pageTest #result .tags .top .editTagsButton`).attr(
+    "data-active-tag-ids",
+    tagIds.join(","),
+  );
 }
 
 $(".pageTest #result .chart .chartLegend button").on("click", (event) => {