Sensor property fix (#54)

device_state_attributes is deprecated and needs to be changed to extra_state_attributes

Co-authored-by: Ian Richardson <iantrich@gmail.com>

Author: raw99

custom_components/feedparser/sensor.py

@@ -131,3 +131,6 @@ def update(self):
                         ] = "https://www.home-assistant.io/images/favicon-192x192-full.png"
 
                 self._entries.append(entry_value)
+    @property
+    def extra_state_attributes(self):
+        return {"entries": self._entries}