On Android with the New Architecture (Fabric) enabled, the Menu component shows incorrect animation and layout behavior

Current behaviour

On Android with the New Architecture (Fabric) enabled, the Menu component shows incorrect animation and layout behavior:
• On first open, the menu appears briefly in the top-left corner of the screen before jumping to the correct trigger position.
• The menu size changes twice visually (from small to full size) during this repositioning.
• On subsequent opens, the menu animates in from the right side of the screen, which is not expected behavior.
• This behavior does not occur on iOS or on Android with the New Architecture disabled.

Expected behaviour

The Menu should:
• Render directly at the correct position (below the trigger)
• Animate naturally (fade or scale in), not from off-screen
• Maintain stable size without double layout jumps

https://github.com/user-attachments/assets/0b149f3d-b19d-4430-bef5-cb417dc9f69c

该 issue 指出了使用 Fabric 的 Menu 组件和 Android，但没有指定源文件或测试。请在启用 New Architecture 的 Android 上复现首次打开及后续打开，然后跟踪 Menu 的定位、尺寸和动画行为。完成的标准是菜单在触发器下方打开，尺寸稳定、动画自然，并且不出现所报告的行为。

由索引模型根据 Issue 内容生成。