add looping by default for /lofi (more lofi = good)

app.py

@@ -241,6 +241,7 @@ async def on_ready():
 async def lofi(interaction: discord.Interaction):
     async def play_lofi(ctx, interaction: discord.Interaction):
         await music_bot.join_voice(ctx)
+        music_bot.loop_mode = LoopMode.SINGLE
         music_bot.current_song = QueueItem(
             url=config.song_path, title="Lofi Music", file_path=config.song_path
         )