fixed empty space below accordion nav items that dont have a subtitle

lms/static/sass/course/courseware/_sidebar.scss

@@ -125,8 +125,12 @@ section.course-index {
               font-weight: normal;
               display: block;
               margin: 0;
+
+              &:empty {
+                display: none;
+              }
             }
-          }          
+          }
 
           &:hover {
             background: rgba(0, 0, 0, .1);

lms/templates/courseware/courseware.html

@@ -41,15 +41,17 @@
         $(".ui-accordion-header a, .ui-accordion-content .subtitle").each(function() {
           var wordArray = $(this).text().split(" ");
           var finalTitle = "";
-          for (i=0;i<=wordArray.length-1;i++) {
-            finalTitle += wordArray[i];
-            if (i == (wordArray.length-2)) {
-              finalTitle += "&nbsp;";
-            } else { 
-              finalTitle += " ";
+          if (wordArray.isEmptyObject()) {
+            for (i=0;i<=wordArray.length-1;i++) {
+              finalTitle += wordArray[i];
+              if (i == (wordArray.length-2)) {
+                finalTitle += "&nbsp;";
+              } else {
+                finalTitle += " ";
+              }
             }
+            $(this).html(finalTitle);
           }
-          $(this).html(finalTitle);
         });
       });
   </script>