fix(web): prevent Output page crash from undefined forEach payload fields

backend/Generator/main.py

@@ -9,7 +9,7 @@
 from collections import OrderedDict
 from nltk import FreqDist
 from nltk.corpus import brown
-from similarity.normalized_levenshtein import NormalizedLevenshtein
+from strsimpy.normalized_levenshtein import NormalizedLevenshtein
 from Generator.mcq import tokenize_into_sentences, identify_keywords, find_sentences_with_keywords, generate_multiple_choice_questions, generate_normal_questions
 from Generator.encoding import beam_search_decoding
 from google.oauth2 import service_account

backend/Generator/mcq.py

@@ -6,8 +6,7 @@
 from flashtext import KeywordProcessor
 from nltk.corpus import stopwords
 from sense2vec import Sense2Vec
-from similarity.normalized_levenshtein import NormalizedLevenshtein
-
+from strsimpy.normalized_levenshtein import NormalizedLevenshtein
 nltk.download('brown')
 nltk.download('stopwords')
 nltk.download('popular')