Update Zed configuration for nix LSP and formatter.

modules/core/user.nix

@@ -6,12 +6,10 @@
   profile,
   system,
   ...
-}:
-let
+}: let
   inherit (import ../../hosts/${host}/variables.nix) gitUsername;
-in
-{
-  imports = [ inputs.home-manager.nixosModules.home-manager ];
+in {
+  imports = [inputs.home-manager.nixosModules.home-manager];
   home-manager = {
     useUserPackages = true;
     useGlobalPkgs = false;
@@ -26,7 +24,7 @@ in
         ;
     };
     users.${username} = {
-      imports = [ ./../home ];
+      imports = [./../home];
       home = {
         username = "${username}";
         homeDirectory = "/home/${username}";
@@ -52,5 +50,5 @@ in
     shell = pkgs.bash;
     ignoreShellProgramCheck = true;
   };
-  nix.settings.allowed-users = [ "${username}" ];
+  nix.settings.allowed-users = ["${username}"];
 }