Fix crash when shift-clicking output slot with empty item stack

Agent-Logs-Url: https://github.com/CyclopsMC/IntegratedTerminals/sessions/ebc0a4b0-8094-4468-a1d8-4e51b8fd7d11

Co-authored-by: rubensworks <440384+rubensworks@users.noreply.github.com>

Author: Copilot

src/main/java/org/cyclops/integratedterminals/network/packet/TerminalStorageIngredientItemStackCraftingGridShiftClickOutput.java

@@ -74,6 +74,9 @@ public void actionServer(Level world, ServerPlayer player) {
                 do {
                     // Break the loop once we can not add the result into the player inventory anymore
                     ItemStack insertItem = slotCrafting.getItem();
+                    if (insertItem.isEmpty()) {
+                        break;
+                    }
                     try (var tx = Transaction.openRoot()) {
                         if (PlayerInventoryWrapper.of(player).insert(ItemResource.of(insertItem), insertItem.getCount(), tx) != insertItem.getCount()) {
                             break;