LoadingModal class

LoadingModal - A loading modal overlay widget.

This modal displays a centered loading indicator with customizable background and indicator colors. It blocks interactions outside the modal when visible.

Features:

• Fully covers the screen to create a loading overlay.
• Customizable background and indicator color.
• Prevents interaction outside the modal when visible.

Example Usage:

LoadingModal(
  options: LoadingModalOptions(
    isVisible: true,
    backgroundColor: Color.fromRGBO(0, 0, 0, 0.7),
    displayColor: Colors.white,
  ),
);