make get_questions return length of questions too

dbutil.py

@@ -113,7 +113,7 @@ class GuildAppDB():
         applications = pickle.loads(application_blob)
         if application_name in applications.keys():
             questions = applications[application_name]["questions"]
-            return questions
+            return questions, len(questions)
         else:
             return "error on get questions: application not found"