add back mbart model

app.py

@@ -31,9 +31,9 @@ from easynmt import EasyNMT
 # tokenizer = AutoTokenizer.from_pretrained("facebook/nllb-200-distilled-600M")
 # model = AutoModelForSeq2SeqLM.from_pretrained("facebook/nllb-200-distilled-600M")
 
-# # Initialize mbart50 models
-# mbart_m2en_model = EasyNMT("mbart50_m2en")
-# mbart_en2m_model = EasyNMT("mbart50_en2m")
+# Initialize mbart50 models
+mbart_m2en_model = EasyNMT("mbart50_m2en")
+mbart_en2m_model = EasyNMT("mbart50_en2m")
 
 # Initialize m2m_100 models
 m2m_model = EasyNMT("m2m_100_1.2B")