sombrero: Cleanup whitepace and function arguments

hosts/sombrero/configuration.nix

@@ -2,7 +2,7 @@
 # your system.  Help is available in the configuration.nix(5) man page
 # and in the NixOS manual (accessible by running ‘nixos-help’).
 
-{ config, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   nix.settings.experimental-features = [ "nix-command" "flakes" ];

hosts/sombrero/hardware-configuration.nix

@@ -1,7 +1,7 @@
 # Do not modify this file!  It was generated by ‘nixos-generate-config’
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
-{ config, lib, pkgs, modulesPath, ... }:
+{ lib, modulesPath, ... }:
 
 {
   imports =
@@ -26,13 +26,13 @@
   fileSystems."/home/alex/media" =
     { device = "/dev/disk/by-uuid/ad4acc0f-172c-40f8-8473-777c957e8764";
       fsType = "ext4";
-      options = [ "nofail" ]; 
+      options = [ "nofail" ];
     };
 
   fileSystems."/home/alex/backup" =
     { device = "/dev/disk/by-uuid/34601701-65e6-4b2c-ac4d-8bef3dfd743f";
       fsType = "ext4";
-      options = [ "nofail" ]; 
+      options = [ "nofail" ];
     };
 
   swapDevices =