feat: Add localization for Russian and English

Слиты effective-dev-opensource запросил слияние feature/add-localized в develop

Created by: KrugarValdes

  • Add toLocalisedString to format dates by system locale
  • Update DateTimeView, DateTimePickerModalView to use localized date format (e.g., "24 июля")
  • Changed resource files (strings.xml, strings_ru.xml) in all modules