Update preprocessor.py

preprocessor.py

@@ -78,7 +78,7 @@ def preprocess_whatsapp_messages(file_path, file_type):
     df['date'] = pd.to_datetime(df['date'])
     df['text'] = df['text'].astype(str)
 
-    return df
+    return df.sort_values(by="date")
 
 def get_dated_input(data, selected_date):
     '''