Nix: Change incorrect package name in /Toolchain/Nix/shell.nix

Author: https://github.com/PiotrekB416 🔰
Commit: 7a2cc28932
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3897
Reviewed-by: https://github.com/ADKaster ✅
Reviewed-by: https://github.com/NotAShelf ✅

Toolchain/Nix/shell.nix

@@ -4,7 +4,7 @@
   ccache,
   clang-tools,
   pre-commit,
-  prettier,
+  nodePackages,
   ladybird,
   ...
 }:
@@ -17,7 +17,7 @@ mkShell {
     ccache
     clang-tools
     pre-commit
-    prettier
+    nodePackages.prettier
   ];
 
   # Fix for: https://github.com/LadybirdBrowser/ladybird/issues/371#issuecomment-2616415434