CustomAnvil

• Fixed "chose enchantments of conflict" gui back button not leading to previous gui
• Tried to make list guis prettier
• Better default item and book cost on paper
• Fix custom craft exact count button not working
• Add work penalty type (Future version may allow custom penalty type)
• Experimental Folia support
• Compatibility with Disenchantment >= 5.4.0 (but break compatibility with version under 5.4.0)
• Automatically add default to config.yml when they are absent

Please be aware that config GUI is not currently available on Folia. And it is a lot more likely to have issue using Custom Anvil on Folia.