Suggestion: Support item stack limits per slot.

Hi, your plugin is a hit with our players, but they've quickly discovered an issue related to the bank cell feature. They've found that they can store very big stack sizes for common items like metal fragments which they got from raiding Raidable Bases.

Currently, if a player tries to store three stacks of 1000 metal fragments each, the plugin prevents it. This is because I limited the stack size to 1000 to counter large quantities being stored in a single slot. However, the plugin fails to consider the number of available slots. If a limit of 1000 of an item is set and there are three empty slots in the bank cell, the plugin should allow storing the item in those slots up to their maximum capacity and consider that limit for each individual slot this item uses.