MinimapExtension class

Minimap extension for managing minimap state and behavior.

This extension provides reactive state for minimap visibility, position, and highlight features. The actual minimap widget consumes this state.

Usage

// Create with visibility enabled
MinimapExtension(visible: true);

// Configure position and theme
MinimapExtension(
  visible: true,
  position: MinimapPosition.topLeft,
  theme: MinimapTheme.dark,
);

// Toggle visibility at runtime
controller.minimap?.toggle();

// Highlight nodes (e.g., search results)
controller.minimap?.highlightNodes({'node-1', 'node-3'});