Update app.py

app.py

@@ -738,7 +738,8 @@ def build_app():
         def _set_language(code, memory):
             confirm_text = LANGUAGE_CONFIRMATION[code]
             audio_path = tts_to_file(confirm_text, code)
-            badge = f"🗣️ Language: **{{'en':'English','ar':'العربية','ur':'اردو'}.get(code,code)}**"
+            lang_names = {"en": "English", "ar": "العربية", "ur": "اردو"}
+            badge = f"🗣️ Language: **{lang_names.get(code, code)}**"
             # Return: lang_state, hide lang_group, show chat_group, badge, audio, memory
             return (
                 code,