Qwen Image Layered Support (#12853)
* [qwen-image] qwen image layered support
* [qwen-image] update doc
* [qwen-image] fix pr comments
* Apply style fixes
* make fix-copies
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Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>
