Enable apple facetime again

I disabled general unfree software.
Facetime hd is unfree and needs explicitly to be enabled again.

systems/hikari/configuration.nix

@@ -143,6 +143,7 @@
 
   nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
     "broadcom-sta"
+    "facetimehd-firmware"
   ];
 
   # List packages installed in system profile. To search, run:

systems/hikari/hardware-configuration.nix

@@ -38,4 +38,6 @@
   # networking.interfaces.enp0s20u2.useDHCP = lib.mkDefault true;
 
   hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+  # This is unfree, so explicitly enable
+  hardware.facetimehd.enable = true;
 }