cleanup whitespace and commas

* [] is now [ ]
* {} is now { }
* commas in arglists go at end of line not beginning

In short, I ran the whole thing through nixfmt-rfc-style but only
accepted about 30% of its changes. I might grow accustomed to more
of it over time

modules/ramdisk.nix

@@ -1,8 +1,4 @@
-{
-  config
-, lib
-, ...
-}:
+{ config, lib, ... }:
 let
   inherit (lib) mkIf mkEnableOption; # types concatStringsSep;
 in {