[LyX/master] Use string value rather than int for \language_package_selection pref

[Jürgen Spitzmüller]

Am Sonntag, dem 05.07.2026 um 21:37 +0000 schrieb Udi Fogiel:
> Jürgen is this a stray break?
> 
> -                       os << "\\language_package_selection ";
> -                       switch (language_package_selection) {
> -                       case LP_AUTO:
> -                               os << "0\n";
> +                       os << "\\language_package_selection \""
> +                           << language_package_selection
> +                           << "\"\n";
>                                 break;
> 
> it gives me problems when I try to switch a UI language from the GUI.

Sorry, can't follow. You need to give me a bit more context.

-- 
Jürgen