isEqualsAny method
Returns true if this string equals any item in list.
Implementation
bool isEqualsAny(List<String>? list, {bool caseSensitive = true}) {
if (isEmpty || list == null || list.isEmpty) return false;
if (caseSensitive) return list.any((String item) => item == this);
final String find = toLowerCase();
return list.any((String item) => item.toLowerCase() == find);
}