Enable support for bufferRequests similar to appMeasurement

[Morish24]

Expected Behaviour

Ability to buffer the websdk call on page unload so that the values can be sent on next page load event

Actual Behaviour

Currently when the page is getting unload and a Interact call is triggered, there is a very high chance that the call would get cancelled and the data would be lost, this is more promenent with clicks which leads to page navigation, and this make tracking such clicks difficult

Here is the current document how it works in AppMeasurement

https://experienceleague.adobe.com/en/docs/analytics/implementation/vars/functions/bufferrequests

Reproduce Scenario (including but not limited to)

This is replicable in almost any website

Steps to Reproduce

Platform and Version

Sample Code that illustrates the problem

Logs taken while reproducing problem