Updated the default sounds.yml to use adaptive namespaced Minecraft sound keys.
Existing sounds.yml files now automatically replace only old BlueArcade default sound entries with the new adaptive keys, while custom sound choices are left untouched.
Re-enabled dynamic arenas on Minecraft 26.1 and newer by adapting temporary world cleanup and extraction to Paper new dimension based world storage layout.
Fixed Minecraft sound compatibility on newer Spigot versions where Bukkit sounds are no longer a regular enum.
Fixed Bedrock players sometimes being treated as Java players when Floodgate was installed, causing Java menus to open instead of Bedrock menus.