Quick Stack Nearby

Quick Stack Nearby 0.4.0.

• Fixes quick stacking into double chests so matching items in either half can fill the full chest.
• Adds a B-by-default quick-stack keybind that repeats while held in-world and stays inactive while any UI screen is open.
• Updates the quick-stack inventory button with a clearer downward-arrow into tray icon.
• Fixes right-clicking the quick-stack inventory button so the slot rules screen opens correctly across supported Minecraft versions.
• Fixes the remaining Minecraft 26.1.2 rules-screen opener failure caused by screen-opening API drift inside the 26.x compatibility group.