v0.1.0 of widgetbook_size_inspector

A Widgetbook addon that provides accurate widget size inspection using RenderBox constraints Changelog excerpt: - Update package constraints for Widgetbook 3.25.0, Flutter 3.44+, and Dart 3.10+. - Add Flutter lints 6.0.0 configuration. - Replace root render view lookup with context-based hit testing for newer Flutter SDKs. - Make intrinsic size measurement opt-in for better tap performance. - Cancel stale overlay timers and repaint highlights only when bounds change. - Add widget tests for hit testing, padding extraction, intrinsic measurement, and overlay auto-hide.