Fixed dict access in app.py

app.py

@@ -35,7 +35,7 @@ models_and_paths = {"akhaliq/JoJoGAN_e4e_ffhq_encode": "e4e_ffhq_encode.pt",
                     "akhaliq/jojogan-stylegan2-ffhq-config-f": f"{model_dir}/base.pt"}
 
 def get_models():
-    for repo_id, file_path in models_and_paths:
+    for repo_id, file_path in models_and_paths.items():
         hf_hub_download(repo_id=repo_id, filename=file_path)
 
     model_list = ['base'] + [Path(model_ckpt).stem for model_ckpt in os.listdir(model_dir) if not 'base' in model_ckpt]