This commit introduces support for loading and rendering images in the Bowser web browser, enhancing the rendering engine to handle various image sources. Key changes include:
- Updated README.md to reflect the new milestone status and added features for image support.
- Added `ImageLayout` class to manage image layout and loading.
- Implemented synchronous and asynchronous image loading in `src/network/images.py`, including caching mechanisms.
- Expanded the DOM parsing capabilities in `DocumentLayout` to handle `<img>` tags and manage their layout directives.
- Created a new `DrawImage` command in the rendering pipeline, which handles the drawing of both loaded images and placeholders for unloaded images.
- Introduced a task queue for managing asynchronous image loads, ensuring UI remains responsive during image fetching.
- Added unit tests for image loading, layout management, and the async task queue to ensure robust functionality and prevent regressions.
