- Updated v_stack.h to use threading::main_property for spacing management, ensuring automatic dirty marking on changes.
- Enhanced render_collector.h with threading::thread_bound for thread safety, added documentation for thread usage.
- Modified widget_state.h to include previous_aabb for dirty region calculations.
- Implemented update_previous_aabb method in widget_state_store to track previous AABB for widgets.
- Refactored viewport_cache to utilize threading::main_property for caching and visibility management.
- Updated widget_base.h to use threading::main_property for widget attributes, ensuring thread-safe access.
- Enhanced widget_context.h with threading::property for managing state changes.
- Refactored imager and scrollbar widgets to utilize new property management for state consistency.
- Added comprehensive documentation for thread safety and usage across the widget framework.
- Introduced `thread_bound` class for binding data to specific threads with compile-time and runtime safety checks.
- Added `thread_context` for managing and verifying thread identities using thread-local storage.
- Developed `thread_dispatcher` to facilitate task scheduling across different threads, including main, layout, and render threads.
- Defined thread tags (`main_thread_tag`, `layout_thread_tag`, `render_thread_tag`, `any_thread_tag`) for type-safe thread identification.
- Created `version_manager` and `version_tracker` for tracking and managing versioning of data sources, enabling efficient change detection and updates.
- Enhanced documentation with usage examples for each component, promoting ease of integration and understanding of the threading framework.
