Make form errors i18nalizable

templates/macros.html.tera

@@ -25,7 +25,7 @@
     <label for="{{ name }}">{{ label | _ }}</label>
     {% if errors is defined and errors[name] %}
         {% for err in errors[name] %}
-            <p class="error">{{ err.message | default(value="Unknown error") }}</p>
+            <p class="error">{{ err.message | default(value="Unknown error") | _ }}</p>
         {% endfor %}
     {% endif %}
     <input type="{{ type }}" id="{{ name }}" name="{{ name }}" value="{{ form[name] | default(value="") }}" {{ props | safe }}/>