BetterBags - ItemRack

• Item sets from other characters will now be deleted while they are not used, instead of just being wiped to reduce clutter in the BetterBags category manager.

This is using a potentially more performance intensive method than before, so if you experience issues with that, please let me know.

Also, if you find any other anomalies let me know either in the comments or open an issue on GitHub, so I can go ahead and fix it.