texlive: use lib.recursiveUpdate for tlpdb overrides (#242118)

  tl = let

    orig = removeAttrs tlpdb [ "00texlive.config" ];

    overridden = orig // {

    overridden = lib.recursiveUpdate orig {

      # overrides of texlive.tlpdb

      # only *.po for tlmgr

      texlive-msg-translations = builtins.removeAttrs orig.texlive-msg-translations [ "hasTlpkg" ];

      texlive-msg-translations.hasTlpkg = false;

      xdvi = orig.xdvi // { # it seems to need it to transform fonts

        deps = (orig.xdvi.deps or []) ++  [ "metafont" ];

      };

      # it seems to need it to transform fonts

      xdvi.deps = (orig.xdvi.deps or []) ++  [ "metafont" ];

      arabi-add = orig.arabi-add // {

      # tlpdb lists license as "unknown", but the README says lppl13: http://mirrors.ctan.org/language/arabic/arabi-add/README

        license = [  "lppl13c" ];

      };

      arabi-add.license = [  "lppl13c" ];

      # TODO: remove this when updating to texlive-2023, npp-for-context is no longer in texlive

      npp-for-context = orig.npp-for-context // {

      # tlpdb lists license as "noinfo", but it's gpl3: https://github.com/luigiScarso/context-npp

        license = [  "gpl3Only" ];

      };

      npp-for-context.license = [  "gpl3Only" ];

      # remove dependency-heavy packages from the basic collections

      collection-basic = orig.collection-basic // {

        deps = lib.filter (n: n != "metafont" && n != "xdvi") orig.collection-basic.deps;

      };

      collection-basic.deps = lib.subtractLists [ "metafont" "xdvi" ] orig.collection-basic.deps;

      # add them elsewhere so that collections cover all packages

      collection-metapost = orig.collection-metapost // {

        deps = orig.collection-metapost.deps ++ [ "metafont" ];

      };

      collection-plaingeneric = orig.collection-plaingeneric // {

        deps = orig.collection-plaingeneric.deps ++ [ "xdvi" ];

      };

      collection-metapost.deps = orig.collection-metapost.deps ++ [ "metafont" ];

      collection-plaingeneric.deps = orig.collection-plaingeneric.deps ++ [ "xdvi" ];

      texdoc = orig.texdoc // {

      texdoc = {

        extraRevision = ".tlpdb${toString tlpdbVersion.revision}";

        extraVersion = "-tlpdb-${toString tlpdbVersion.revision}";