breadcrumbs added on course detail page

ECOM-6046

course_discovery/static/sass/publisher/publisher.scss

@@ -729,3 +729,11 @@ select {
 #id_organization {
   width: auto;
 }
+
+.course-breadcrumb {
+  padding-bottom: 20px;
+
+  a {
+    text-decoration: underline;
+  }
+}

course_discovery/templates/publisher/view_course_form.html

@@ -7,6 +7,10 @@
 {% block page_content %}
     {% include 'alert_messages.html' %}
 
+<div class="course-breadcrumb">
+  <a href="{% url 'publisher:publisher_courses' %}">{% trans "Courses" %}</a> > <span>{{ object.title }}</span>
+</div>
+
 <div class="layout-full publisher-layout layout">
     <h2 class="layout-title">{% trans "Base information" %}</h2>