[mac] Add a homebrew module.

Signed-off-by: Mariano Uvalle <juvallegarza@microsoft.com>

home-modules/homebrew.nix

@@ -0,0 +1,5 @@
+{ ... } : {
+  programgs.zsh.profileExtra = ''
+  eval "$(/opt/homebrew/bin/brew shellenv)"
+  '';
+}

hosts/macbook/home.nix

@@ -8,6 +8,7 @@
   imports = [
     ../../home-modules/direnv.nix
     ../../home-modules/ghostty-config.nix
+    ../../home-modules/homebrew.nix
     ../../home-modules/karabiner.nix
     ../../home-modules/lazygit.nix
     ../../home-modules/nvim.nix

hosts/msft-mac/home.nix

@@ -14,6 +14,7 @@ in {
     ../../home-modules/default.nix
     ../../home-modules/direnv.nix
     ../../home-modules/ghostty-config.nix
+    ../../home-modules/homebrew.nix
     ../../home-modules/karabiner.nix
     ../../home-modules/lazygit.nix
     ../../home-modules/nvim.nix