feat: add step 5 page and update active stepper logic in poultry farm inspection

doc: some utils in core

packages/core/lib/utils/parser.dart

@@ -1,5 +1,10 @@
 import 'package:flutter/foundation.dart';
 
+/// Parse a list in isolate.
+/// Example:
+/// ```dart
+/// await parseListInIsolate<T>(list, fromJson);
+/// ```
 List<T> _parserList<T>(Map<String, dynamic> args) {
   final list = args['list'] as List<dynamic>;
   final T Function(Map<String, dynamic>) fromJson =
@@ -8,6 +13,11 @@ List<T> _parserList<T>(Map<String, dynamic> args) {
   return list.map<T>((e) => fromJson(e as Map<String, dynamic>)).toList();
 }
 
+/// Parse a list in isolate.
+/// Example:
+/// ```dart
+/// await parseListInIsolate<T>(list, fromJson);
+/// ```
 Future<List<T>> parseListInIsolate<T>(
   List<dynamic> list,
   T Function(Map<String, dynamic>) fromJson,