feat: change dialect from dropdown to radio

app.py

@@ -198,7 +198,7 @@ with demo:
         outputs=[speaker_wav, speaker_drop_down],
     )
 
-    dialect_drop_down = gr.Dropdown(
+    dialect_radio = gr.Radio(
         choices=[
             (k, v)
             for k, v in models_config[default_model_id]["dialect_mapping"].items()
@@ -211,7 +211,7 @@ with demo:
     model_drop_down.input(
         when_model_selected,
         inputs=[model_drop_down],
-        outputs=[speaker_drop_down, dialect_drop_down, use_default_emb_or_custom_radio],
+        outputs=[speaker_drop_down, dialect_radio, use_default_emb_or_custom_radio],
     )
 
     gr.Markdown(
@@ -232,7 +232,7 @@ with demo:
             use_default_emb_or_custom_radio,
             speaker_wav,
             speaker_drop_down,
-            dialect_drop_down,
+            dialect_radio,
             gr.Textbox(
                 label="輸入文字",
                 value="客家族群个六堆運動會會一直延續下去，為臺灣个體育史寫下特別个一頁。",