treewide: with stdenv.lib; in meta -> with lib;

Part of: https://github.com/NixOS/nixpkgs/issues/108938

meta = with stdenv.lib;

is a widely used pattern. We want to slowly remove
the `stdenv.lib` indirection and encourage people
to use `lib` directly. Thus let’s start with the meta
field.

This used a rewriting script to mostly automatically
replace all occurances of this pattern, and add the
`lib` argument to the package header if it doesn’t
exist yet.

The script in its current form is available at
https://cs.tvl.fyi/depot@2f807d7f141068d2d60676a89213eaa5353ca6e0/-/blob/users/Profpatsch/nixpkgs-rewriter/default.nix

pkgs/tools/networking/wicd/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, python2Packages
+{ lib, stdenv, fetchurl, python2Packages
 , wpa_supplicant, dhcp, dhcpcd, wirelesstools
 , nettools, openresolv, iproute, iputils }:
 
@@ -102,7 +102,7 @@ in stdenv.mkDerivation rec {
     echo "wpa2-ttls" >> "$out/etc/encryption/templates/active"
   '';
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     homepage = "http://wicd.net/";
     description = "A wiredless and wired network manager";
     longDescription=''