Update src/app.py

src/app.py

@@ -510,7 +510,7 @@ def basic_grammar_check(text):
 class ResumeAnalyzer:
     def __init__(self):
         self.nlp, self.grammar_tool = init_tools()
-        self.chatbot = SimpleCPUChatbot()
+        self.chatbot = ImprovedCPUChatbot()
         
         try:
             self.stop_words = set(stopwords.words('english'))