New buttons to transfer items from your haves to your collection and viceversa

I have finally implemented a little feature that may be helpful when deciding how many copies of a card or miniature to keep for your private collection and how many to offer for trades.
Now, instead of having to manually enter a higher number in one column and the correspondingly lower number in the other, you can just click on the corresponding arrow button to transfer items from ‘Your Collection’ to your ‘For Trade’ column, or the other way around.
Hopefully this little thing won’t come in the way of anyone and will be helpful in lots of occasions.

New buttons/links to transfer items from your collection to your haves for trade and viceversa