fetchNextcloudApp: use fetchurl by default

  and `nodePackages.vscode-json-languageserver-bin` were dropped due to an unmaintained upstream.

  The `vscode-langservers-extracted` package is a maintained drop-in replacement.

- `fetchNextcloudApp` has been rewritten to use `fetchurl` rather than

  `fetchzip`. This invalidates all existing hashes but you can restore the old

  behavior by passing it `unpack = true`.

- `haskell.lib.compose.justStaticExecutables` now disallows references to GHC in the

  output by default, to alert users to closure size issues caused by

  [#164630](https://github.com/NixOS/nixpkgs/issues/164630). See ["Packaging

, patches ? [ ]

, description ? null

, homepage ? null

, unpack ? true # whether to use fetchzip rather than fetchurl

, unpack ? false # whether to use fetchzip rather than fetchurl

}:

applyPatches ({

  inherit patches;

        appName = pname;

        appVersion = data.version;

        license = appBaseDefs.${pname};

        unpack = false;

        inherit (data) url hash description homepage;

      }) {};