feat(nix): update x1 hardware configuration for power and swap settings

- Added udev rules to manage Intel RAPL power limits
- Adjusted swapDevices formatting for consistency

systems/x86_64-linux/x1/hardware-configuration.nix

@@ -1,12 +1,12 @@
 # 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
-, inputs
-, ...
+{
+  config,
+  lib,
+  pkgs,
+  inputs,
+  ...
 }:
 
 {
@@ -16,6 +16,10 @@
 
   hardware.enableRedistributableFirmware = lib.mkDefault true;
 
+  services.udev.extraRules = ''
+    SUBSYSTEM=="powercap", KERNEL=="intel-rapl:0", ATTR{constraint_0_power_limit_uw}="28000000", ATTR{constraint_1_power_limit_uw}="35000000", ATTR{constraint_1_time_window_us}="9994240"
+  '';
+
   boot = {
     initrd.availableKernelModules = [
       "thunderbolt"
@@ -66,7 +70,7 @@
     };
   };
 
-  swapDevices = [{ device = "/dev/mapper/luks-280f2e07-e5fc-478e-b7ee-445c99bea415"; }];
+  swapDevices = [ { device = "/dev/mapper/luks-280f2e07-e5fc-478e-b7ee-445c99bea415"; } ];
 
   # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
   # (the default) this is the recommended approach. When using systemd-networkd it's