oidc: add title to authorization consent page (#45464)

src/authentic2_idp_oidc/templates/authentic2_idp_oidc/authorization.html

@@ -1,6 +1,7 @@
 {% extends "authentic2/base-page.html" %}
 {% load i18n %}
 {% block content %}
+<h2>{% trans "Authentication access check" %}</h2>
 <form method="post" id="a2-oidc-authorization-form">
     <p>{% blocktrans with client_name=client.name %}Do you want to be authenticated on service {{ client_name }} ?{% endblocktrans %}</p>
     {% if scopes %}