feat(tty): add kitty keyboard protocol support

modules/os/tty/README.org

@@ -11,6 +11,7 @@ This module configures Emacs for use in the terminal, by providing:
 - Cursor-shape changing across evil states (requires a terminal that supports
   it).
 - Mouse support in the terminal.
+- Support for the [[https://sw.kovidgoyal.net/kitty/keyboard-protocol/][Kitty keyboard protocol]] in supported terminals.
 
 ** Maintainers
 /This module has no dedicated maintainers./ [[doom-contrib-maintainer:][Become a maintainer?]]
@@ -25,6 +26,7 @@ This module configures Emacs for use in the terminal, by providing:
 ** Packages
 - [[doom-package:clipetty]] if [[doom-module:+osc]]
 - [[doom-package:evil-terminal-cursor-changer]] if [[doom-module::editor evil]]
+- [[doom-package:kkp]]
 - [[doom-package:xclip]] unless [[doom-module:+osc]]
 
 ** Hacks

modules/os/tty/config.el

@@ -42,3 +42,7 @@
 ;; https://github.com/saitoha/mouseterm-plus/releases. That makes to support
 ;; VT's DECSCUSR sequence.
 (add-hook 'tty-setup-hook #'evil-terminal-cursor-changer-activate)
+
+;; Add support for the Kitty keyboard protocol.
+(use-package! kkp
+  :hook (after-init . global-kkp-mode))

modules/os/tty/packages.el

@@ -11,3 +11,5 @@
 ;; NOTE Despite the evil-* prefix, evil-terminal-cursor-changer does not depend
 ;;      on evil (anymore).
 (package! evil-terminal-cursor-changer :pin "2358f3e27d89128361cf80fcfa092fdfe5b52fd8")
+
+(package! kkp :pin "ed9214329f11b095fc7bad06feb329b9f232258d")