Lighthouse audit fails with no-unload-listeners

[alanayoub]

Is your feature request related to a problem? Please describe.
Lighthouse errors due to no-unload-listeners.

Describe the solution you'd like
Based off of https://web.dev/bfcache/#never-use-the-unload-event, pagehide event is the recommended event since it's triggered in all cases where unload is triggered.

Additional context

Never add an unload event listener! Use the pagehide event instead. Adding an unload event listener will make your site slower in Firefox, and the code won't even run most of the time in Chrome and Safari.