serie.tmpl.html: move missing table html

When refactoring the web interfaces, series was removed.

However, we still want to show an individual Serie, which should
properly be inside it's own table - so let's add this to the template.

public/serie.tmpl.html

@@ -1,11 +1,19 @@
 {{ define "serie" }}
+<table class="table table-sm table-hover">
+<thead class="thead-light">
+    <tr>
+    <th scope="col">Owner</th>
+    <th scope="col">Changeset</th>
+    <th scope="col">Flags</th>
+    </tr>
+</thead>
+<tbody>
     <tr>
         <td colspan="3" class="table-success">Serie with {{ len .ChangeSets }} changes</td>
     </tr>
     {{ range $changeset := .ChangeSets }}
     {{ block "changeset" $changeset }}{{ end }}
     {{ end }}
-<tr>
-<td colspan="3">&nbsp;</td>
-</tr>
+</tbody>
+</table>
 {{ end }}