Some of the indices used to determine the behaviour of the quickMoveStack method are wrong, which results in incorrect quickMoveStack actions. For example, quick moving a stack from the last hotbar action does not work.

This MR just serves to fix these indices, although if you don't mind I could also improve, in a separate branch, the implementation to potentially avoid these kind of errors in the future (it would also serve me to learn more about modding MC 😄 )