bug: Nushell error messages remains even it is not enabled, and home-manager-user.service fails

[MarkGhanz]

Are you following the right branch?

• [X] My Nixpkgs and Home Manager versions are in sync

Is there an existing issue for this?

• [X] I have searched the existing issues

Issue description

When restarting home-manager-user.service after nixos-rebuild switch,

3月 25 10:12:37 MKZFRMW hm-activate-karm2[8975]: Error:   × Nushell launched as a REPL, but STDIN is not a TTY; either launch in a
3月 25 10:12:37 MKZFRMW hm-activate-karm2[8975]:   │ valid terminal or provide arguments to invoke a script!

still appears even if programs.nushell.enabled is unset.

Maintainer CC

No response

System information

- system: `"x86_64-linux"`
 - host os: `Linux 6.8.1, NixOS, 24.05 (Uakari), 24.05.20240323.44d0940`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.18.2`
 - channels(root): `"nixos, nixos-hardware"`
 - nixpkgs: `/nix/store/amxd2p02wx78nyaa4bkb0hjvgwhz1dq7-source`