feat: use kitty image protocol in ghostty

[mfontanini]

This detects ghostty and uses the kitty graphics protocol on it by default. I don't have access to ghostty yet so I can't test this but based on this article TERM_PROGRAM=ghostty is the way to detect this. If it implements the protocol correctly, this should work out of the box.

@fredrikaverpil could I ask for your help here? :)

[fredrikaverpil]

Hey @mfontanini absolutely. I just ran cargo install --git https://github.com/mfontanini/presenterm , as per the docs to build a new ~/.cargo/bin/presenterm.

But it doesn't look like that made a difference... 🤔

Build log

❯ cargo install --git https://github.com/mfontanini/presenterm
    Updating git repository `https://github.com/mfontanini/presenterm`
  Installing presenterm v0.9.0 (https://github.com/mfontanini/presenterm#ec192d14)
    Updating crates.io index
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    Finished release [optimized] target(s) in 1m 11s
  Installing /Users/fredrik/.cargo/bin/presenterm
   Installed package `presenterm v0.9.0 (https://github.com/mfontanini/presenterm#ec192d14)` (executable `presenterm`)

$ echo $TERM_PROGRAM
ghostty

$ ~/.cargo/bin/presenterm examples/demo.md

[mfontanini]

Hmm interesting... I'll have to wait until it's publicly available then :(. Thanks for trying it out!