Paged inventory

@VitalPagedInventory.Info(fromSlot = 10, toSlot = 16)
@VitalInventory.Info(type = VitalInventory.Type.GENERIC_9X3, name = "My paged inventory")
public class MyPagedInventory extends VitalPagedInventory {
    @Override
    public void onUpdate() {
        // This item doesn’t do anything.
        setItem(0, new ItemStack(Material.STICK));
    }

    @Override
    public void onUpdate(Player player) {
        // This item can be clicked.
        setItem(1, new ItemStack(Material.COBBLESTONE), (e) -> {
            // Do something when this item is clicked.
            player.sendMessage("You have clicked the item in slot 1");
        });

        // Use this lifecycle to set dynamic items that may change when this inventory is updated.
    }

    @Override
    public void onPageChange(int page, Player player) {
        final var someData = List.of("Element 1", "Element 2", "Element 3");
        final var pageContent = sliceForPage(player, someData);

        final var fromSlot = getInfo(VitalPagedInventory.Info.class);
        for (int i = 0; i < pageContent.size(); I++) {
            final var content = pageContent.get(i);
            final var slot = fromSlot + i;
            
            final var item = new ItemStack(Material.PAPER);
            item.setDisplayName(content);
            setItem(slot, item, (e) -> {
                player.sendMessage("You have clicked the paged item '" + content + "'!");
            });
        }

        // Use this lifecycle to set dynamic items for your paged content.
        // Normally, you would only set items in the configured "fromSlot" and "toSlot" here.
    }
}