Some gridder fixes
Some gridder fixes

Cards don't change height unless the column number is altered, and the
element height is correctly calculator now.

matthewdixon/alloy,AzzA-D/alloy,jamcow/alloy,gfinbow/alloy,matthewdixon/alloy,gfinbow/alloy,jamcow/alloy,AzzA-D/alloy,TheAlloyTeam/alloy,TheAlloyTeam/alloy