[BUG] Fire unload event

[Lulubul]

Description/Screenshot
I tried to migrate from 2.5.11 to 2.8.9 version for @microsoft/applicationinsights-web and i receive a new error in lighthouse.

The unload event does not fire reliably and listening for it can prevent browser optimizations like the Back-Forward Cache. Consider using the pagehide or visibilitychange events instead.

https://developer.chrome.com/blog/page-lifecycle-api/#the-unload-event

Steps to Reproduce
Migrate from @microsoft/applicationinsights-web 2.5.11 to 2.8.9 version and run lighthouse.

• OS/Browser: Edge
• SDK Version [e.g. 22]: 2.8.9
• How you initialized the SDK: npm install

Expected behavior
The unload event should not be fired since is a issue in some browser https://developer.chrome.com/blog/page-lifecycle-api/#the-unload-event
Additional context
I'm not sure if in version 3 this is fixed but since this is beta new need a stable version.

[Karlie-777]

@Lulubul extra configurations are provided to customize unload events, see details here please let us know if this resolve the issue.

[Lulubul]

It worked thank you very much.

[github-actions]

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