feat(nix): enable WezTerm support on Darwin systems

- Added a module to configure WezTerm with an enable option and system package inclusion.
- Enabled WezTerm for aarch64-darwin systems and updated base system packages.
- Improves terminal experience by integrating WezTerm into the Darwin configurations.

modules/darwin/services/base/default.nix

@@ -39,6 +39,7 @@ in
         wget
         ssh-tresor
         starship
+        wezterm
       ];
       shells = [
         pkgs.fish