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/misc/mimeo/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, desktop-file-utils, file, python3Packages }:
+{ lib, stdenv, fetchurl, desktop-file-utils, file, python3Packages }:
 
 python3Packages.buildPythonApplication rec {
   pname = "mimeo";
@@ -23,7 +23,7 @@ python3Packages.buildPythonApplication rec {
 
   installPhase = "install -Dm755 Mimeo.py $out/bin/mimeo";
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "Open files by MIME-type or file name using regular expressions";
     homepage = "http://xyne.archlinux.ca/projects/mimeo/";
     license = [ licenses.gpl2 ];