Migrate to Bubbletea v2

[darkhz]

Hello, and thanks for creating this library.

Is there any roadmap to migrate to v2 or provide another module for v2 users?

The migration guide is in the bubbletea github repo.

EDIT: Nvm, created an initial pull request for v2 migration. I haven't created a separate importable module yet.

[Digital-Shane]

Hey thanks for the suggestion and first pass pr, bubbletea v2 was not out of beta when I made the library so I was just waiting for the interfaces to finalize.

I'm on vacation without my laptop until April 22nd, so I won't be able to review the work until then. I have a few other breaking changes I've been planning for v2 of treeview too, so it will take a little longer for that before I make the release.

[darkhz]

@Digital-Shane noted. I'll use my fork until you make the necessary changes. Thanks.

[Digital-Shane]

Completed in #20