Fix size of quota column

htdocs/tpl/page/list_account.html

@@ -16,7 +16,7 @@
                     <th width="100px">POP / IMAP</th>
                     <th width="100px">Webmail</th>
                     <th width="100px">Auth SMTP</th>
-                    <th>Quota</th>
+                    <th width="100px">Quota</th>
                     <th width="50px">Suppr</th>
                 </tr>
             </thead>