update to only include top 50 overall words for word clouds

handler.py

@@ -500,7 +500,9 @@ class EndpointHandler():
         word_cloud, uptake_word_cloud, teacher_general_cloud, student_general_cloud = transcript.get_word_clouds()
         teacher_cloud = teacher_math_cloud + teacher_general_cloud
         student_cloud = student_math_cloud + student_general_cloud
-        return_dict['teacherTopWords'] = teacher_cloud
-        return_dict['studentTopWords'] = student_cloud
+        sorted_teacher_cloud = sorted(teacher_cloud, key=lambda x: x['value'], reverse=True)[:50]
+        sorted_student_cloud = sorted(student_cloud, key=lambda x: x['value'], reverse=True)[:50]
+        return_dict['teacherTopWords'] = sorted_teacher_cloud
+        return_dict['studentTopWords'] = sorted_student_cloud
 
         return return_dict