formatStringDate function
Implementation
String formatStringDate(String date) {
String day = date.split("-").first;
String month = date.split("-").skip(1).first;
String year = date.split("-").skip(2).first;
if (day.split("").length == 4) return date.split("T").first;
return "${getYear(int.parse(year))}-${getMonth(month)}-$day";
}