Fix missing lang parameter in other examples url

Author: Arjen

wallet_core/mock_relying_party/templates/disclosed/attributes.askama

@@ -24,7 +24,8 @@
     {% else %}
         {% call attributes::attributes(attributes) %}
 {% endmatch %}
-
+{# using it in the call directly didn't work #}
+{% let lang = base.selected_lang %}
 {# should be last for accessibility purposes #}
-{% call demo_bar::demo_bar(base.trans.demo_see_other, "../", base.trans.demo_see_examples, base.selected_lang, base.trans, base.available_languages, base.session_token, base.nonce) %}
+{% call demo_bar::demo_bar(base.trans.demo_see_other, format!("../?lang={}", lang), base.trans.demo_see_examples, lang, base.trans, base.available_languages, base.session_token, base.nonce) %}
 {% endblock %}