Add support for ghostty terminal

[mattrobenolt]

Fixes #299

[mattrobenolt]

Sorta orthogonal to this, longer term if you care, the kitty graphics protocol can be detected with a query, which can eliminate the need to explicitly support certain terminals, and this list becoming a maintainer burden. I'm not advocating for implementing this, just an FYI if you were unaware this existed. That way any new terminals, whether closed source, whatever, that implement this protocol can utilize the feature automatically.

https://sw.kovidgoyal.net/kitty/graphics-protocol/#querying-support-and-available-transmission-mediums

[swsnr]

Looks good 🙏

Thanks for updating README and the manual page 🙏

Could you also add a CHANGELOG entry as well?

[mattrobenolt]

Could you also add a CHANGELOG entry as well?

Added.

[swsnr]

Sorta orthogonal to this, longer term if you care, the kitty graphics protocol can be detected with a query, which can eliminate the need to explicitly support certain terminals, and this list becoming a maintainer burden.

I'm aware but it'd be quite a bit of an refactoring to turn detection from the purely passive process it is now to an active process, and it'd complicate things, as we'd have to deal with eg timeouts etc.

So far it hasn't been worth the effort 🤷