update action nursery(not done)

lib/presentation/custom_widgets/widget_media_picker.dart

         currentItems.forEach((element) {
           files.add(element.pathFile);
         });
+        widget.onChangeFiles(files);
+        print("existed files ${files.length}");
+
         return WrapContentHozListView(
           itemBuilder: (context, index) {
             var item = currentItems[index];