cyclone: Migrate to Linux subdirectory

There's also a `spotlights-macbook-air` under NixOS, and it would be preferable to eventually have it in-tree.

flake.nix

@@ -114,8 +114,7 @@
       # We define a NixOS configuration for a PC workstation.
       nixosConfigurations.cyclone = nixpkgs.lib.nixosSystem {
         modules = [
-          ./hosts/cyclone/configuration.nix
-          ./hosts/cyclone/hardware-configuration.nix
+          ./hosts/linux/cyclone/configuration.nix
 
           vscode-server.nixosModules.default
           home-manager.nixosModules.home-manager
@@ -135,7 +134,7 @@
       darwinConfigurations."spotlights-macbook-air" = nix-darwin.lib.darwinSystem {
         modules = [
           # System-wide configuration
-          ./hosts/spotlights-macbook-air/configuration.nix
+          ./hosts/darwin/spotlights-macbook-air/configuration.nix
           # Our provided home-manager configuration
           home-manager.darwinModules.home-manager
           {

hosts/linux/cyclone/configuration.nix

@@ -1,6 +1,10 @@
 { config, lib, pkgs, ... }:
 
 {
+  imports = [
+    ./hardware-configuration.nix
+  ]
+
   networking = {
     hostName = "cyclone";
     domain = "host.fox-int.cloud";