Add PlaceholderAPI support for showing world load status (%multiverse-core_isloaded_<worldname>%) by @benwoo1110 in https://github.com/Multiverse/Multiverse-Core/pull/3431
Full Changelog: https://github.com/Multiverse/Multiverse-Core/compare/5.5.3-pre.1...5.5.3-pre.2