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/applications/misc/electrum/dash.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, python2Packages }:
+{ lib, stdenv, fetchurl, python2Packages }:
 
 python2Packages.buildPythonApplication rec {
   version = "2.9.3.1";
@@ -37,7 +37,7 @@ python2Packages.buildPythonApplication rec {
     pyrcc4 icons.qrc -o gui/qt/icons_rc.py
   '';
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "Electrum DASH";
     homepage = "https://github.com/dashpay/electrum-dash";
     license = licenses.gpl3;

pkgs/applications/misc/electrum/default.nix

@@ -1,4 +1,4 @@
-{ stdenv
+{ lib, stdenv
 , fetchurl
 , fetchFromGitHub
 , wrapQtAppsHook
@@ -139,7 +139,7 @@ python3.pkgs.buildPythonApplication {
     ;
   };
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "A lightweight Bitcoin wallet";
     longDescription = ''
       An easy-to-use Bitcoin client featuring wallets generated from

pkgs/applications/misc/electrum/ltc.nix

@@ -1,4 +1,4 @@
-{ stdenv
+{ lib, stdenv
 , fetchurl
 , python3Packages
 , wrapQtAppsHook
@@ -46,7 +46,7 @@ python3Packages.buildPythonApplication rec {
     $out/bin/electrum-ltc help >/dev/null
   '';
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "Litecoin thin client";
     longDescription = ''
       Electrum-LTC is a simple, but powerful Litecoin wallet. A twelve-word