9.9.24.73 updated the add_article method

While running the app from huggingface hosting, since the file has a
different path naming convention, the filename was not properly extracted
due to linux system has a different path annotation than windows.

added filename extraction logic for selecting the filename from the path
string for both windows and linux systems.

modified: features.py

features.py

@@ -339,7 +339,12 @@ def add_article(domain,file,add_to_s3=True, add_to_local=True, file_object=True)
     else:
         # extract the content from the pdf file
         content, _ = read_pdf(file)
-        filename = file.name.split("\\")[-1]
+        if "\\" in file.name:
+            filename = file.name.split("\\")[-1]
+        elif "/" in file.name:
+            filename = file.name.split("/")[-1]
+        else:
+            filename = file.name
 
         # upload the article to s3
         pdf_obj = open(file.name, 'rb')