applets/digital-clock: add icon for timezone in config
Like K4TimeZoneWidget, show country flags in the list. Most countries already have country flags in kf5/locale/countries, and for AnyCountry an earth icon will be used.
Like K4TimeZoneWidget, show country flags in the list. Most countries already have country flags in kf5/locale/countries, and for AnyCountry an earth icon will be used.