Maybe the last small update

- More bug fixes

- Added the ability to hold down the mouse wheel to discard/sell/store/take items even faster

- Added the ability to move using the arrow keys

- Added a setting allowing to move by clicking the arrows once instead of twice

- Made it so mana shards are always behind items

- Removed debug functions

Unless some atrocious bugs are found, this is probably going to be the last update of this current version.