During a QT interface update some code was commented out with the question if it is necessary.
The purpose of this code was to allow bothRe-enable commented out code to handle both '.' and ',' shortcut keys for the decimal separator: ',' and '.'
-> It adds a shortcut for the other decimal separator. Also port it from KLocale to QLocale.
This patch enables the code again and also updates the interface to QT as in the rest of the code.BUG: 357824