Add duplicate functionality for unit, sub-section and section - TNL-5797, TNL-5798

cms/templates/js/course-outline.underscore

@@ -112,6 +112,14 @@ if (is_proctored_exam) {
                         </a>
                     </li>
                 <% } %>
+                <% if (xblockInfo.isDuplicable()) { %>
+                    <li class="action-item action-duplicate">
+                        <a href="#" data-tooltip="<%- gettext('Duplicate') %>" class="duplicate-button action-button">
+                            <span class="icon fa fa-copy" aria-hidden="true"></span>
+                            <span class="sr action-button-text"><%- gettext('Duplicate') %></span>
+                        </a>
+                    </li>
+                <% } %>
                 <% if (xblockInfo.isDeletable()) { %>
                     <li class="action-item action-delete">
                         <a href="#" data-tooltip="<%- gettext('Delete') %>" class="delete-button action-button">

cms/templates/js/mock/mock-course-outline-page.underscore

@@ -38,7 +38,7 @@
         <section class="content">
             <article class="content-primary" role="main">
                 <div class="wrapper-dnd">
-                    <article class="outline" data-locator="mock-course" data-course-key="slashes:MockCourse">
+                    <article class="outline outline-course" data-locator="mock-course" data-course-key="slashes:MockCourse">
                         <div class="no-content add-xblock-component">
                             <p>You haven't added any content to this course yet.
                                 <a href="#" class="button button-new" data-category="chapter" data-parent="mock-course" data-default-name="Section" title="Click to add a new section">