WorldEdit Hang Fix

A simple mod that prevents WorldEdit from hanging the Minecraft server when the server is stopping It fixes https://github.com/EngineHub/WorldEdit/issues/2459. What it does: - Shutdown `WorldEdit.getInstance().getExecutorService()` on dedicated server stop (or it will hang the server for maximum 60s) - Ensure the singleton `java.util.Timer` object in `FutureProgressListener` runs on a daemon thread (or it will hang the server forever) Supported environment | Platform | Minecraft | WorldEdit | |----------|--------------|-----------| | fabric | MC >= 1.14 | >=7.0.0 | | forge | MC >= 1.15 | >=7.0.0 | | neoforge | MC >= 1.20.6 | >=7.0.0 |