Changed the portuguese voice

Changed the voice to Agueda, which should be a real European Portuguese voice

app.py

@@ -35,7 +35,7 @@ speechify_client = Speechify(token=speechify_api_key)
 # Voice config
 language_config = {
     "Portuguese": {
-        "voice_id": "joao",
+        "voice_id": "agueda",
         "language": "pt-PT",
         "model": "simba-multilingual",
         "audio_format": "mp3"