Simplifications + StackTabBarToolbarBehavior

Release Notes

🚀 New Features:

This release simplifies children binding, makes message listening clearer, and introduces StackTabBarToolbarBehavior.

⚠️ Breaking Changes:

• NavigationNodeState:
  Instead of using the getter for publishers:

  public override var childrenPublishers: [any Publisher<[NavigationNode], Never>] {
      super.childrenPublishers + [$tabs.map { $0.map { $0.node } }]
  }

  Use the getter for nodes:

  public override var children: [any NavigationNode] {
      super.children + tabs.map(\.node)
  }

• TabsRootNavigationNodeState:
  When initializing, pass the ID to the selectedTabNodeID argument instead of passing the whole node.

🔧 Changes:

• Simplified children binding logic
• Simplified TabsRootNavigationNodeState initialization
• Added StackTabBarToolbarBehavior to control tab bar toolbar behavior
• Added onMessageReceived(_:), which simplifies the syntax for listening to messages