fix js delayed bug for load event

[AkramiPro]

i notice that you replace DOMContentLoaded with DOMContentLiteSpeedLoaded
but not for load event
so some codes not runnig that depend on "load" event
i check and see that you try to fix this issue but it's commented for now:

i try this code and it's fix the problem

/**
 * fix delay js load bug for "load" events
 */
add_filter( 'litespeed_optm_cssjs', function ( $con, $file_type, $src ) {
    if ( $file_type === 'js' ) {
        $con = str_replace( 'addEventListener("load"', 'addEventListener("DOMContentLiteSpeedLoaded"', $con );
    }

    return trim( $con );
}, 9999, 3 );

Update:
i know that load and DOMContentLoaded has small difference in logic but in case we want to delay load all js it is not matter to use DOMContentLoaded instead of load event. so replace it with DOMContentLiteSpeedLoaded does not make a problem (i think). in my test everything is works fine