Fix to Bug #7434

Fixing a ancient bug where placing a item from inventory to cart when cart is full would render such item un-clickable, same for when doing so from storage to cart.
Special Thanks to Yommy for all the data, jTynne for bringing this up.
http://hercules.ws/board/tracker/issue-7434-weightinability-to-click-item-issue/

Signed-off-by: shennetsind <ind@henn.et>
Merge branch 'master' of https://github.com/HerculesWS/Hercules