minor change

app.py

@@ -240,7 +240,8 @@ def extract_text_from_ppt(file_path):
         # Remove the converted PPTX file
         os.remove(pptx_file_path)
 
-        return "\n\n".join(text_content)
+        out =  "\n\n".join(text_content)
+        return out
     except Exception as e:
         print(f"Error extracting text from PPT file: {e}")
         return "Error extracting text from PPT file"