Used app_config.verbose_name instead of app_label|capfirst.

An admin view performed the capitalization in the template, unlike all others.

Refs #10436.

django/contrib/admin/templates/admin/delete_confirmation.html

@@ -6,7 +6,7 @@
 {% block breadcrumbs %}
 <div class="breadcrumbs">
 <a href="{% url 'admin:index' %}">{% trans 'Home' %}</a>
-&rsaquo; <a href="{% url 'admin:app_list' app_label=opts.app_label %}">{{ app_label|capfirst }}</a>
+&rsaquo; <a href="{% url 'admin:app_list' app_label=opts.app_label %}">{{ opts.app_config.verbose_name }}</a>
 &rsaquo; <a href="{% url opts|admin_urlname:'changelist' %}">{{ opts.verbose_name_plural|capfirst|escape }}</a>
 &rsaquo; <a href="{% url opts|admin_urlname:'change' object.pk|admin_urlquote %}">{{ object|truncatewords:"18" }}</a>
 &rsaquo; {% trans 'Delete' %}