added nixfmt-tree as formatter

also ran it, which is why so many files were modified

modules/packages.nix

@@ -1,12 +1,13 @@
 {
   pkgs,
   ...
-}: {
+}:
+{
   # All system packages required from nixos-unstable by default
   environment.systemPackages = with pkgs; [
     wineWowPackages.stable
     wine
-    (wine.override {wineBuild = "wine64";})
+    (wine.override { wineBuild = "wine64"; })
     wine64
     wineWowPackages.staging
     winetricks