treewide: Format all Nix files

Format all Nix files using the officially approved formatter,
making the CI check introduced in the previous commit succeed:

  nix-build ci -A fmt.check

This is the next step of the of the [implementation](https://github.com/NixOS/nixfmt/issues/153)
of the accepted [RFC 166](https://github.com/NixOS/rfcs/pull/166).

This commit will lead to merge conflicts for a number of PRs,
up to an estimated ~1100 (~33%) among the PRs with activity in the past 2
months, but that should be lower than what it would be without the previous
[partial treewide format](https://github.com/NixOS/nixpkgs/pull/322537).

Merge conflicts caused by this commit can now automatically be resolved while rebasing using the
[auto-rebase script](8616af08d9/maintainers/scripts/auto-rebase).

If you run into any problems regarding any of this, please reach out to the
[formatting team](https://nixos.org/community/teams/formatting/) by
pinging @NixOS/nix-formatting.

nixos/modules/services/x11/desktop-managers/lxqt.nix

@@ -1,4 +1,10 @@
-{ config, lib, pkgs, utils, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  utils,
+  ...
+}:
 
 with lib;
 
@@ -22,7 +28,7 @@ in
     };
 
     environment.lxqt.excludePackages = mkOption {
-      default = [];
+      default = [ ];
       example = literalExpression "[ pkgs.lxqt.qterminal ]";
       type = types.listOf types.package;
       description = "Which LXQt packages to exclude from the default environment";
@@ -53,11 +59,9 @@ in
     };
 
     environment.systemPackages =
-      pkgs.lxqt.preRequisitePackages ++
-      pkgs.lxqt.corePackages ++
-      (utils.removePackagesByName
-        pkgs.lxqt.optionalPackages
-        config.environment.lxqt.excludePackages);
+      pkgs.lxqt.preRequisitePackages
+      ++ pkgs.lxqt.corePackages
+      ++ (utils.removePackagesByName pkgs.lxqt.optionalPackages config.environment.lxqt.excludePackages);
 
     # Link some extra directories in /run/current-system/software/share
     environment.pathsToLink = [ "/share" ];
@@ -74,7 +78,10 @@ in
     xdg.portal.lxqt.enable = mkDefault true;
 
     # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1050804
-    xdg.portal.config.lxqt.default = mkDefault [ "lxqt" "gtk" ];
+    xdg.portal.config.lxqt.default = mkDefault [
+      "lxqt"
+      "gtk"
+    ];
   };
 
 }