+ added tested support for 1.21

~ fixed bStats metrics

- dropped official support for 1.16, 1.17, 1.18 and 1.19
You can still use it on these versions, but don't expect help if something goes horribly wrong!

As always, if you find bugs or have an idea for improvement, please do not hesitate to open a discussion here or send me a direct message.

And if you like this or my other plugins, then please leave a review!