## Description
Overseer.nvim recently-ish released v2.
This PR updates the extras config according to the breaking changes.
A few commands were removed and the `bindings` config key was renamed to
`keymaps`.
I've also taken the liberty of marking the plugin as not lazy since it
lazy-loads itself.
The impact on startup is ~<1ms, which I think is acceptable over
lazy.nvim command/keymap listener overhead, but this is open to
discussion 🤷
## Related Issue(s)
fixes#6876
## Checklist
- [x] I've read the
[CONTRIBUTING](https://github.com/LazyVim/LazyVim/blob/main/CONTRIBUTING.md)
guidelines.
