Replace zet with the z monolith

Signed-off-by: Oliver Davies <oliver@oliverdavies.uk>

modules/zsh/aliases.nix

@@ -14,6 +14,7 @@
         tag = "tag-release";
         vss = "LC_ALL=C sort --unique ${config.xdg.userDirs.extraConfig.XDG_REPOS_DIR}/nixos-config/modules/home-manager/cli/neovim/config/spell/en.utf-8.adddotfiles/nvim/spell/en.utf-8.add --output ${config.xdg.userDirs.extraConfig.XDG_REPOS_DIR}/nixos-config/modules/home-manager/cli/neovim/config/spell/en.utf-8.add";
         wt = "git worktree";
+        zet = "z zet";
       };
     };
 }

modules/zsh/init.nix

@@ -3,6 +3,9 @@
     { config, pkgs, ... }:
     {
       programs.zsh.initContent = ''
+        # Completions
+        source <(z completion zsh)
+
         background() {
           for ((i=2;i<=$#;i++)); do
             ''${@[1]} ''${@[$i]} &> /dev/null &