[backport cloud/1.36] fix: remove negative margin from legacy widget canvas#8013

christian-byrne merged 1 commit intocloud/1.36Comfy-Org/ComfyUI_frontend:cloud/1.36from

backport-7925-to-cloud-1.36Comfy-Org/ComfyUI_frontend:backport-7925-to-cloud-1.36Copy head branch name to clipboard