feat: better zsh completion

modules/capabilities/shell.nix

@@ -65,12 +65,20 @@
           bindkey -v
 
           export KEYTIMEOUT=1
+          setopt MENU_COMPLETE
+          zmodload zsh/complist
 
           autoload -U history-search-end
           zle -N history-beginning-search-backward-end history-search-end
           zle -N history-beginning-search-forward-end history-search-end
           bindkey "^[OA" history-beginning-search-backward-end
           bindkey "^[OB" history-beginning-search-forward-end
+          if [[ -n "''${terminfo[kcbt]}" ]]; then
+            bindkey "''${terminfo[kcbt]}" reverse-menu-complete
+            bindkey -M menuselect "''${terminfo[kcbt]}" reverse-menu-complete
+          fi
+          bindkey "^[[Z" reverse-menu-complete
+          bindkey -M menuselect "^[[Z" reverse-menu-complete
 
           zstyle ':completion:*' completer _extensions _complete _approximate
           zstyle ':completion:*' use-cache on
@@ -79,7 +87,7 @@
           zstyle ':completion:*' complete-options true
           zstyle ':completion:*' matcher-list 'm:{a-zA-Z}={A-Za-z}' 'r:|[._-]=* r:|=*' 'l:|=* r:|=*'
           zstyle ':completion:*' keep-prefix true
-          zstyle ':completion:*' menu select
+          zstyle ':completion:*' menu yes select=1
           zstyle ':completion:*' list-grouped false
           zstyle ':completion:*' list-separator '''
           zstyle ':completion:*' group-name '''