Update of TodoVO to match new parsing rule required for mobile database

Author: Vladimir Minkin

example/_shared/lib/todo/data/vo/todo_vo.dart

@@ -1,10 +1,10 @@
 class TodoVO {
   TodoVO(this.id, this.text, this.note, this.completed);
-  TodoVO.fromJson(Map<String, dynamic> json)
-    : id = json['id'] as String,
-      text = json['text'] as String,
-      note = json['note'] as String,
-      completed = json['completed'] as bool;
+  TodoVO.fromJson(Map<dynamic, dynamic> json)
+      : id = json['id'] as String,
+        text = json['text'] as String,
+        note = json['note'] as String,
+        completed = json['completed'] as bool;
 
   bool completed;
   String text;
@@ -13,10 +13,5 @@ class TodoVO {
 
   bool visible = true;
 
-  Map<String, dynamic> toJson() => {
-    'id': id,
-    'text': text,
-    'note': note,
-    'completed': completed
-  };
+  Map<dynamic, dynamic> toJson() => {'id': id, 'text': text, 'note': note, 'completed': completed};
 }

example/_shared/lib/todo/model/todo_model.dart

@@ -16,7 +16,7 @@ class TodoModel {
           for (final obj in await _dbService.retrieve(STORAGE_KEY) as List) {
             print('> TodoModel -> init: todo = $obj');
             if (obj != null) {
-              final todoVO = TodoVO.fromJson(obj as Map<String, dynamic>);
+              final todoVO = TodoVO.fromJson(obj as Map<dynamic, dynamic>);
               Wire.data(todoVO.id, value: todoVO);
               idsList.add(todoVO.id);
               if (!todoVO.completed) notCompletedCount++;
@@ -199,7 +199,7 @@ class TodoModel {
   }
 
   void _saveChanges() {
-    final List<Map<String, dynamic>> listOfTodoVO = [];
+    final List<Map<dynamic, dynamic>> listOfTodoVO = [];
     for (final id in Wire.data(DataKeys.LIST_OF_IDS).value as List<String>) {
       listOfTodoVO.add((Wire.data(id).value as TodoVO).toJson());
     }