Date format in Zypp History in the Qt Package Selector does not follow locale

[embar-]

Zypp History in the Qt Package Selector has problem with date in some locales. E.g. for Lithuanian, it shows "24 lapkričio 2021" - seems merely translated from English format "24 November 2021" (DD Month YYYY), however such date expression is incorrect in Lithuanian language (we never say in Lithuanian in such way and is error according to Lithuanian language grammar too, not only by date format itself). The long date format in Lithuania is "YYYY m. month DD d." (e.g. "2021 m. lapkričio 24 d.") and official Lithuanian short date format is the same as an ISO "YYYY-MM-DD" (e.g. 2021-11-24). Thus Zypp History in the Qt Package Selector should not force English date format, but use locale-dependent date format – either short format (preferably) or long format (as is in other Qt Packager places like RPM Changelog, Technical details). This problem related to #51

[embar-]

[shundhammer]

That appears to be done here:

https://github.com/libyui/libyui/blob/master/libyui-qt-pkg/src/YQPkgHistoryDialog.cc#L265

going back all the way to 2012, i.e. 10 years ago:

https://github.com/libyui/libyui/blame/83729345940f41c1f834d507c5fc9787e33a59e0/libyui-qt-pkg/src/YQPkgHistoryDialog.cc#L187

And yes, I also find those date formats annoying; it's also totally unusual in German to spell the month name out, it's never "3. Februar 2022", it's always "3.2.2022" or "03.02.2022". But at least it doesn't leave the user guessing if it's that weird American date format ("2/3/2022") where the month comes first, then the day, then the year, or the normal order.