Grid Inventory 2.2.0

• The extended storage has been removed (the paged storage panel, its Tab key, the /savaruinv storage commands and its config). It has moved to SVR Inventory. Nothing is deleted: whatever a player had stored stays in their save data untouched, and SVR Inventory imports it the first time it loads that player.
• New API: com.savaru.inv.api.GridInventory. An inventory from another mod can implement it to be laid out as a grid nine wide and any height tall, so footprints apply to it the way they do to a chest.
• Faster container screens. The Backpacked check no longer does a reflective lookup for every slot every frame (the answer is kept per class), and each container's grid is rebuilt once per frame instead of once per slot.
• Slots in a scrolling container view are checked against the cell they currently show.
• Forge / NeoForge 1.21.1: the rotate key now works on items in slots while the extended storage is turned off (before, it only worked on the item under the cursor).