Merge pull request #273 from opensafely-core/fix-table-sort

Fix csv column sorting by adding a data-order attribute

airlock/templates/file_browser/csv.html

@@ -48,7 +48,7 @@
           {% for row in rows %}
             <tr>
               {% for cell in row %}
-                <td>{{ cell }}</td>
+                <td data-order="{{ cell }}">{{ cell }}</td>
               {% endfor %}
             </tr>
           {% endfor %}