feat: add apps(using homebrew), update shells

home/darwin/default.nix

@@ -6,7 +6,6 @@
     
     ./alacritty
     ./core.nix
-    ./nushell.nix
   ];
 
   # Home Manager needs a bit of information about you and the

home/darwin/nushell.nix

@@ -1,15 +0,0 @@
-{ ... }: {
-  # nushell's PATH do not include nix-darwin's PATH
-  # this is a workaround to add nix-darwin's PATH to nushell's PATH
-  programs.nushell.extraConfig = ''
-    let-env PATH = ([
-
-      "~/.nix-profile/bin"
-      "/etc/profiles/per-user/admin/bin"
-      "/run/current-system/sw/bin"
-      "/nix/var/nix/profiles/default/bin"
-
-      ($env.PATH | split row (char esep))
-    ] | flatten)
-  '';
-}