add saving feature extractor

app.py

@@ -80,7 +80,7 @@ def export(
             print("Repo created successfully!", new_repo_url)
 
             folder = Path(folder)
-            for dir_name in ("", "vae_encoder", "vae_decoder", "text_encoder", "text_encoder_2", "unet", "tokenizer", "tokenizer_2", "scheduler"):
+            for dir_name in ("", "vae_encoder", "vae_decoder", "text_encoder", "text_encoder_2", "unet", "tokenizer", "tokenizer_2", "scheduler", "feature_extractor"):
                 if not (folder / dir_name).is_dir():
                     continue
                 for file_path in (folder / dir_name).iterdir():