New kitty image backend (#74)

* Initial attempt at supporting new backend for kitty images

* it's almost working !!

* it almost basically works

* yaaayyyy it works

* Use github kittage

* Uhhhh various improvements from kittage and psx-shm

* Remove logging

* incorporate recovering from deleted images

* Make it work correctly with ghostty image eviction too

* fall back to stdout if shms don't work

* Make help page work again

* zooming basically does what you'd expect now

* yay zooming woohoo

* clean up top and bottom rendering

* Only allow zooming in kitty

* Add debug logging and fix cursor placement after image display

* yaaaay zooming out once you're already zoomed in and respecting kitty's limits for how big of an image to display

* mmmm maybe it's finally ready to merge...

* Update deps

* Switch around list of items on changelog

* fmt

* Small fixes to avoid panic and allow zooming back in after zooming out

.github/workflows/rust.yml

@@ -32,6 +32,8 @@ jobs:
       run: rustup component add clippy rustfmt
     - name: Clippy
       run: cargo clippy -- -D warnings
+    - name: Tests
+      run: cargo test
     - name: Check fmt
       run: cargo fmt -- --check
     - name: Run tests