Short year part (`yy`) is not processed correctly in date formats

[korzh]

If we set a short date format with a short year part (like dd/MM/yy) then that part is not processed correctly and it shows just yy in the result date values

An example of setting a short date format:

easydata.core.i18n.updateLocaleSettings({
    shortDateFormat: 'dd/MM/yy',
});