Storable XP Skulk Fruit & Transcribable Enchantments on Skulk Leaves

There should be a skulk plant, possibly the one attached to the existing skulk sensor, that can be harvested/cultivated for two purposes: the skulk fruit and the skulk leaf.

The skulk fruit would store a certain amount of XP, and could be kept in a chest and eaten at a later point to regain the XP. This means one would have to keep farming the plant to continue using this mechanic.

The skulk leaf would lift enchantments from items, allowing one to apply them to other items. For example, if one doesn't yet have mending, one could maintain their enchantments by moving it to another item. Or, one could enchant a gold item to get a better enchantment and then move it to another item.

Alternatively, the skulk fruit and the skulk leaf could be crafting components to make a transcribable enchanting bookmark–so instead of having the master librarian trade be candles (which doesn't make that much sense), they could trade this enchanting bookmark that would be used up once the enchantment is transferred.