fix: fix device class for power source sensors

custom_components/hubitat/sensor.py

@@ -184,7 +184,7 @@ def __init__(self, **kwargs: Unpack[HubitatEntityArgs]):
         """Initialize a power source sensor."""
         super().__init__(
             attribute=DeviceAttribute.POWER_SOURCE,
-            device_class=SensorDeviceClass.POWER,
+            device_class=SensorDeviceClass.ENUM,
             **kwargs,
         )