Move Nix files back to the root of the project

hosts/PW05CH3L/configuration.nix

@@ -0,0 +1,28 @@
+{
+  inputs,
+  pkgs,
+  username,
+  ...
+}:
+
+{
+  imports = [
+    ../common
+    ../../users/opdavies
+  ];
+
+  environment.systemPackages = with pkgs; [
+    wl-clipboard
+  ];
+
+  nixosModules = {
+    docker.enable = true;
+  };
+
+  wsl = {
+    enable = true;
+    defaultUser = username;
+  };
+
+  nix.nixPath = [ "nixpkgs=${inputs.nixpkgs}" ];
+}