fix rebuild when using ntfs partitions

needed to define inInitrd, used vfat.nix as a template

nixos/modules/tasks/filesystems/ntfs.nix

···
 
 with lib;
 
+let
+
+  inInitrd = any (fs: fs == "ntfs") config.boot.initrd.supportedFilesystems;
+
+in
+
 {
   config = mkIf (any (fs: fs == "ntfs" || fs == "ntfs-3g") config.boot.supportedFilesystems) {