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/development/python-modules/translationstring/default.nix

@@ -1,4 +1,4 @@
-{ stdenv
+{ lib, stdenv
 , buildPythonPackage
 , fetchPypi
 }:
@@ -12,7 +12,7 @@ buildPythonPackage rec {
     sha256 = "bf947538d76e69ba12ab17283b10355a9ecfbc078e6123443f43f2107f6376f3";
   };
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     homepage = "https://pylonsproject.org/";
     description = "Utility library for i18n relied on by various Repoze and Pyramid packages";
     license = licenses.bsd0;