Implement option to replace existing alias when renaming an account; use database transactions when editing accounts

templates/account_delete.html.twig

@@ -18,7 +18,7 @@
     <p>You are about to delete the mail account "{{ accountUsername }}" including the following aliases:</p>
     <ul>
         {% for alias in aliases %}
-            <li>{{ alias['mail_address'] }}</li>
+            <li>{{ alias.getMailAddress() }}</li>
         {% endfor %}
     </ul>
 

templates/account_details.html.twig

@@ -73,8 +73,8 @@
             </tr>
             {% for alias in aliases %}
                 <tr>
-                    <td>{{ alias['mail_address'] }}</td>
-                    <td>{{ alias['created_at'] }}</td>
+                    <td>{{ alias.getMailAddress() }}</td>
+                    <td>{{ alias.getCreatedAt() | date }}</td>
                     <td><a href="#">Delete</a></td> {# TODO #}
                 </tr>
             {% endfor %}