fix(add back file too large token check)

app.py

@@ -228,8 +228,8 @@ def upload_file(filepath):
             extracted_file_text = extract_text_python_docx(filepath)
         
         # return warning if file is too large
-        # if not return_approximate_token_size(extracted_file_text):
-        #     raise gr.Error("File is too large to process. Please upload a smaller file.")
+        if not return_approximate_token_size(extracted_file_text):
+            raise gr.Error("File is too large to process. Please upload a smaller file.")
 
         return [gr.UploadButton(visible=False), gr.Group(visible=True), gr.Markdown(f"**Uploaded file:** {name}"), extracted_file_text]
     else: