Update highscores.py to use new data classes.

data/highscores_data.py

@@ -38,6 +38,15 @@ class HighscoresData:
             data[guild_id] = guild_obj.to_dict()
         return "Highscores Data\n" + json.dumps(data, indent=4)
 
+    @property
+    def guilds(self) -> "list[Guild]":
+        """
+        Getter for Guilds list.
+
+        Returns:
+            list[Guild]: List of Guilds tracked by Highscores Bot
+        """
+
     def add_guild(self, guild_id: int) -> None:
         """
         Creates a new Guild and adds to Guild map.