Feature Request: Add Listener for Picker Dismissal Without Selection

[bevice1]

Description: We are successfully using the Peekaboo Image Picker in our project, but we currently lack a way to detect if the user closes the picker without making a selection. Specifically, we need a listener for scenarios where the user:

• Presses the "X" button in the toolbar.

• Swipes down to dismiss the picker.

Expected Behavior: A callback or event should be triggered when the picker is dismissed without an item being selected.

Use Case: This feature would help us track when users exit the picker without choosing an item, enabling better UX handling and analytics.

Thank you for considering this feature!