Fix nixd nixpkgs configuration

.vscode/settings.json

@@ -17,7 +17,7 @@
         },
         "nixd": {
             "nixpkgs": {
-                "expr": "(builtins.getFlake \"${workspaceFolder}/flake.nix\").inputs.nixpkgs { }"
+                "expr": "import (builtins.getFlake (builtins.toString ./.)).inputs.nixpkgs { }"
             },
             "formatting": {
                 "command": [

hosts/vm/default.nix

@@ -26,4 +26,4 @@
   modules.shell.defaultShell = "zsh";
 
   modules.pipewire.enable = true;
-}
+}

modules/core/sddm.nix

@@ -22,4 +22,4 @@ in
       DefaultTimeoutStopSec = "10s";
     };
   };
-}
+}