fix: dialect_drop_down default bug

app.py

@@ -84,11 +84,13 @@ with demo:
 
     dialect_drop_down = gr.Radio(
         choices=[
-            (k, v)
-            for k, v in models_config[default_model_id]["dialect_mapping"].items()
+            "test"
+            # (k, v)
+            # for k, v in models_config[default_model_id]["dialect_mapping"].items()
         ],
-        value=list(models_config[default_model_id]["dialect_mapping"].values())[0],
+        # value=list(models_config[default_model_id]["dialect_mapping"].values())[0],
         label="族別",
+        visible=False
     )
 
     model_drop_down.input(