nh: Delay run on boot so clean service doesnt make the boot process wait for it

Fix formatting

Co-authored-by: Acid Bong <acidbong@tilde.club>

changed target to multi-user

nixos/modules/programs/nh.nix

@@ -99,6 +99,7 @@ in
         script = "exec ${lib.getExe cfg.package} clean all ${cfg.clean.extraArgs}";
         startAt = cfg.clean.dates;
         path = [ config.nix.package ];
+        after = [ "multi-user.target" ];
         serviceConfig.Type = "oneshot";
       };