v2.4.1-release

• Update name of state and documentation for StateNotifierImpl.

• Introducing transformState function for model editing, allowing state modifications at any nesting level. This function supports implementations like copyWith, enabling selective value updates in your models.

• Simplified state management: unified notifier and VM into a single approach using ReactiveBuilder, ReactiveAsync, and ReactiveStream. Access functions directly through notifier reference (e.g., instance.notifier.replaceData(...)). Access ReactiveAsync data via notifier.data.

• Removed ValueNotifier value dependency, eliminating nested state update issues (previously instance.value.value, now instance.data).

• Protected internal builder functions for improved encapsulation.

• Maintained compatibility with ListenableBuilder for ReactiveNotifier.

• Removed context dependency from builder as ReactiveNotifier doesn't require it.