This is a smallish update to fix a couple of issues...or to try to.
All of the 1.15 enchants should be usable now. There is also a config file now that provides the option to use the fancier display ("Sharpness 1000") or to turn it off ("Sharpness enchantment.level.1000"). The enchantment display will no longer be weirdly italicized.
However, this was my first plugin, and as to be expected, a lot of the code was absolutely terrible. So, I'm going to completely rewrite the code so I can actually maintain it properly. It will probably take a while though. Hopefully this small update will suffice until then.