Ghostty website to include versioning for features

[rhodes-b]

I think it makes sense as more features start to get released and more versions of Ghostty start to exist in the world it would be good to add what version specific features were added in so people can determine what is compatible before opening issues that something doesnt work or make a help post on discord

An example of this is kitty website
https://sw.kovidgoyal.net/kitty/graphics-protocol/#unicode-placeholders

[00-kat]

Adding on to "before opening issues that something doesnt work or make a help post on discord", there have already been many instances on the Discord where people have gone either "this config option doesn't work!" or "the fix you said doesn't work for me :(" but it was because their version of Ghostty didn't have the corresponding option.

Ghostty website to include

Also, I think it would be better to update the document comments of the options themselves where applicable, so that it shows up everywhere and not just on the Ghostty website.