chore(config): set EDITOR/VISUAL defaults and update fish/zsh keybindings

dot_zshrc

@@ -26,6 +26,9 @@ if [ -d "$HOME/.config/zsh/functions" ]; then
     unset _f
 fi
 
+# ZLE keybinds — zsh ports of fish_user_key_bindings.fish
+[ -f "$HOME/.config/zsh/keybinds.zsh" ] && . "$HOME/.config/zsh/keybinds.zsh"
+
 # atuin shell history
 [ -f "$HOME/.atuin/bin/env" ] && . "$HOME/.atuin/bin/env"
 command -v atuin >/dev/null 2>&1 && eval "$(atuin init zsh)"