edit app for config_root env var

app.py

@@ -9,6 +9,7 @@ import tempfile
 USE_CUDA = torch.cuda.is_available()
 BATCH_SIZE = int(os.getenv("BATCH_SIZE", "12"))
 
+os.environ['CONFIG_ROOT'] = './config'
 # Read model repo and filename from environment variables
 REPO_ID  = os.getenv("MODEL_REPO_ID", "chenxie95/Language-Audio-Banquet-ckpt")
 FILENAME = os.getenv("MODEL_FILENAME", "ev-pre-aug.ckpt")