Add CONF_SOURCES import to config_flow

- Fixes missing import for source configuration
- Sources are fully configurable via options flow

Author: rsnodgrass

custom_components/mcintosh/config_flow.py

@@ -19,7 +19,7 @@
 from pymcintosh.models import SUPPORTED_MODELS, get_model_config
 
 from .utils import get_connection_overrides
-from .const import CONF_BAUD_RATE, CONF_MODEL, DEFAULT_URL, DOMAIN, COMPATIBLE_MODELS
+from .const import CONF_BAUD_RATE, CONF_MODEL, CONF_SOURCES, DEFAULT_URL, DOMAIN, COMPATIBLE_MODELS
 
 LOG = logging.getLogger(__name__)