FancyHolograms

Commit hash: a8e87679ac54571334aeec98927229d2bbf32d5a

Commit message: fancynpcs, fancyholograms-v2, fancydialogs: Add support for 1.21.7

(The last commit message does not always directly reflect the changes related to this version.)

Keep in mind that this is a snapshot version. Snapshot versions are not meant to be used in production. They are for testing purposes only and may contain bugs or incomplete features. Use at your own risk.