Grid Inventory 2.1.4.5

Reported by Folcoy and Sheldon J Plankton on Discord — thank you.

• Fix items picked up off the ground being placed into armour slots. When a collected item could not fit anywhere in the grid, the fallback search for a free slot scanned the player's entire inventory container instead of just the 3x9 grid. That range runs past the 36 main slots into the four armour slots and the offhand, and any empty slot outside the grid was accepted as a valid destination without further checks — so a dropped item could end up worn. The search is now confined to the grid, and an item with genuinely nowhere to go is left on the ground, matching vanilla. Triggering it took a fairly full inventory: every hotbar slot occupied and no remaining grid space large enough for the item's footprint, which is why it went unreported for so long.