fix[notification]: onClose event runs repeatedly

[kovsu]

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[中文版模板 / Chinese template]

This is a ...

• New feature
• Bug fix
• Site / document update
• Component style update
• TypeScript definition update
• Refactoring
• Code style optimization
• Branch merge
• Other (about what?)

What's the background?

• Resolve what problem.
  The mouseleave event of this component will create a timer after unmounted. So It may cause onClose event runs repeatedly.
• Related issue link.
  fix The notification component clicks the close icon and calls the onClose function repeatedly #6144

Chinese description

使用 notification 的时候，它绑定了 mouseLeave 和 mouseEnter 事件。在我点击关闭按钮后，unMounted 事件运行后，又会运行 mouseLeave 事件，导致清除了定时器后又新建了一个定时器。所以会调用两次 notification 里 onClose 事件两次。

[kovsu]

[kovsu]

[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.