Fix zoom

[huchenlei]

adjustMouseEvent is trying to handle PointerEvent and WheelEvent at the same time. However, for WheelEvent, deltaX and deltaY are readonly attributes, so writing to them results an error.

References

• https://developer.mozilla.org/en-US/docs/Web/API/PointerEvent
• https://developer.mozilla.org/en-US/docs/Web/API/WheelEvent/deltaX
• https://github.com/Comfy-Org/ComfyUI_frontend/actions/runs/9814493426 (Scroll Test)