convertToListInt method
Converts a string representation of a list of integers to a List
Implementation
List<int> convertToListInt() {
// Remove the square brackets and whitespace
String cleaned = replaceAll('[', '').replaceAll(']', '').trim();
// Split by comma and convert each element to int
return cleaned.split(',').map((e) => int.parse(e.trim())).toList();
}