[backport core/1.40] fix: cache canvas cursor style to avoid redundant DOM writes#9604

christian-byrne merged 1 commit intocore/1.40Comfy-Org/ComfyUI_frontend:core/1.40from

backport-9171-to-core-1.40Comfy-Org/ComfyUI_frontend:backport-9171-to-core-1.40Copy head branch name to clipboard