Add breadcrumbs to CheckedFromJsonException

[Rofl113]

Good afternoon!
The suggestion is to add bread crumbs so that you can trace all the way to the problem area.

Such information would be useful for debugging or error detection.

"key_ one" => 1 => "key_ two" => 3

The number means which item is in the list

Suggestion: add field to CheckedFromJsonException:

final List<StackTraceJson> parentStack;

Where StackTraceJson is (as an example):

class StackTraceJson {
  const StackTraceJson.key(String this.key)
    : index = null;
  const StackTraceJson.index(int this.index)
    : key = null;
  // Params
  final String? key;
  final int? index;
  // Localized
  @override
  String toString() => (key != null) ? '"$key"' : "$index";
}