Implement adding aliases for accounts

templates/account_details.html.twig

@@ -82,4 +82,20 @@
     {% else %}
         <p>No aliases.</p>
     {% endif %}
+
+    <form action="/accounts/{{ id }}/addalias" method="POST">
+        {{ include('includes/form_result_box.html.twig') }}
+
+        <table class="margin_vertical_1rem">
+            <tr>
+                <td><label for="add_alias_address">New alias:</label></td>
+                <td><input id="add_alias_address" name="alias_address" value="{{ formData['new_alias'] | default('') }}"/></td>
+            </tr>
+            <tr>
+                <td colspan="2">
+                    <button type="submit">Add alias</button>
+                </td>
+            </tr>
+        </table>
+    </form>
 {% endblock %}