[BUG] Automatic language selection does not follow system settings

[xmgz]

I think this issue is related to #352 closed issue, so might be a duplicate

Describe the bug
qtpass does not follow system language, in my case gl_ES, so it uses default english.

To Reproduce
install qtpass from official repository and open it.

Expected behavior
qtpass dialogs a menus following system settings

Desktop (please complete the following information):

• OS/Distribution: both Archlinux AND Debian 11 using KDE
• Version 1.3.2 (arch), I'm not in the Debian system now.

Additional context
language file is your master branch, updated from weblate (I'm translator there)

As the same behaviour happens on totally different systems I presume somewhere in the code language settings are not following the standard procedure (as any other KDE app)

I have tried to launch qtpass using #352 (comment) to manually select language but it did not work.

Thank you.