Removed device_state_attributes warning (#64)

custom_components/trakt/sensor.py

@@ -51,7 +51,7 @@ def unit_of_measurement(self):
         return "shows"
 
     @property
-    def device_state_attributes(self):
+    def extra_state_attributes(self):
         """Return the state attributes of the sensor."""
         attributes = {
             "data": self.coordinator.data,