feat(nix): migrate ack settings

.dotbot.conf.yaml

@@ -13,7 +13,6 @@
     - ~/.gnupg
 
 - link:
-    ~/.ack: search/ack
     ~/.ag: search/ag
     ~/.asdfrc: asdf/asdfrc
     ~/.config/alacritty: alacritty

nix/home/ack/default.nix

@@ -0,0 +1,9 @@
+{ config, pkgs, ... }:
+
+{
+  home.file.".ack" = {
+    source = ./ack;
+  };
+
+  home.packages = [ pkgs.ack ];
+}

nix/home/default.nix

@@ -6,6 +6,7 @@ in
 {
   # https://nix-community.github.io/home-manager/options.html
   imports = [
+    ./ack
     ./ripgrep
     ./skhd
     ./yabai