getUserInitials function
Returns user initials (can have only first letter of firstName/lastName or both).
Implementation
String getUserInitials(types.User user) {
var initials = '';
if ((user.firstName ?? '').isNotEmpty) {
initials += user.firstName![0].toUpperCase();
}
if ((user.lastName ?? '').isNotEmpty) {
initials += user.lastName![0].toUpperCase();
}
return initials.trim();
}