InvUI#destroy for a more flexible lifecycle management

[Grabsky]

It would be greatly appreciated if there was InvUI#destroy(), or similar method that could be called to basically cancel and clean-up listeners and tasks registered to the server. That way, library could be instructed to load / unload itself at runtime and not leave up stale listeners, tasks, open windows, etc.

This would allow for a bit more flexibility in certain plugins (e.g., modular plugins that can load/unload on demand) and would also mean InvUI could be used by scripting engines such as Kite - a Kotlin scripting runtime for Paper.

We already take care of script-registered listeners, tasks and commands but we cannot easily apply that to libraries used in scripts, unless they provide methods to manage that lifecycle.

I hope this can be taken into consideration - list of GUI libraries compatible with Kite - at this moment - is very limited 😅

[NichtStudioCode]

Sounds interesting. I'll look into it, shouldn't be too difficult to implement.