fix: Fix various page titles (#4239)

Fixes #4230

ietf/templates/403.html

@@ -1,7 +1,7 @@
 {# Copyright The IETF Trust 2007, All Rights Reserved #}
 {% extends "base.html" %}
 {% load static %}
-{% block title %}404 Not Found{% endblock %}
+{% block title %}Error: Restricted Access{% endblock %}
 {% block content %}
     <img class="col-2 mb-5"
          src="{% static 'ietf/images/ietf-logo.svg' %}"

ietf/templates/404.html

@@ -1,7 +1,7 @@
 {# Copyright The IETF Trust 2007, All Rights Reserved #}
 {% extends "base.html" %}
 {% load static %}
-{% block title %}404 Not Found{% endblock %}
+{% block title %}Error: Page Not Found{% endblock %}
 {% block content %}
     <img class="col-2 mb-5"
          src="{% static 'ietf/images/ietf-logo.svg' %}"

ietf/templates/oidc_provider/authorize.html

@@ -1,7 +1,7 @@
 {# Copyright The IETF Trust 2007, All Rights Reserved #}
 {% extends "base.html" %}
 {% load static %}
-{% block title %}404 Not Found{% endblock %}
+{% block title %}Request for Permission{% endblock %}
 {% block content %}
     <h1>Request for Permission</h1>
     <p class="my-3">
@@ -24,4 +24,4 @@
         <button class="btn btn-primary" name="allow" type="submit" value="Authorize">Authorize</button>
         <button class="btn btn-secondary float-end" type="submit">Decline</button>
     </form>
-{% endblock %}
+{% endblock %}

ietf/templates/oidc_provider/error.html

@@ -1,7 +1,7 @@
 {# Copyright The IETF Trust 2007, All Rights Reserved #}
 {% extends "base.html" %}
 {% load static %}
-{% block title %}404 Not Found{% endblock %}
+{% block title %}Permission Error{% endblock %}
 {% block content %}
     <img class="col-2 mb-5"
          src="{% static 'ietf/images/ietf-logo.svg' %}"