Use language parameter in json model listing

app/main.py

@@ -167,7 +167,7 @@ def _print_model_list_json(language:str):
     for model_id in vips_models:
         model_list.append({
             "modelId" : model_id, 
-            "modelName" : get_model_instance(model_id).get_model_name()
+            "modelName" : get_model_instance(model_id).get_model_name(language)
         }) 
     return model_list