implement mix tracklist balancing

app/crons/mixes.py

@@ -4,10 +4,16 @@ from app.store.homepage import HomepageStore
 
 
 class Mixes(CronJob):
+    """
+    This cron job creates mixes displayed on the homepage.
+    """
     def __init__(self):
         super().__init__("mixes", 5)
 
     def run(self):
+        """
+        Creates the artist mixes
+        """
         print("⭐⭐⭐⭐ Mixes cron job running")
         mixes = MixesPlugin()
         artist_mixes = mixes.get_artists()