feat(harpoon): Update to v2

[luxus]

tested with minimal v3 install.. but not actually using it. so i hope it works :D

[github-actions]

Review Checklist

Does this PR follow the [Contribution Guidelines](development guidelines)? Following is a partial checklist:

Proper conventional commit scoping:

• If you are adding a new plugin, the scope would be the name of the category it is being added into. ex. feat(utility): added noice.nvim plugin

• If you are modifying a pre-existing plugin or pack, the scope would be the name of the plugin folder. ex. fix(noice-nvim): fix LSP handler error

• Pull request title has the appropriate conventional commit type and scope where the scope is the name of the pre-existing directory in the project as described above

• README is properly formatted and uses fenced in links with <url> unless they are inside a [title](url)

• Proper usage of opts table rather than setting things up with the config function.

[luxus]

it should work now

[Uzaaft]

@luxus I’ll take a look in about 1h. 👀

[mehalter]

This was incorrectly not marked as a breaking change

[mehalter]

just a heads up. I will revise the commit now before we tag a release