FriendListBeepSetupReadObserver CallableFriendListBeepSetupReadObserver(): voidSets up an IntersectionObserver on unread received messages to mark them as read once they scroll into the upper half of the chat viewport, and attaches a scroll listener to toggle the scroll-to-bottom button.Returns void
Sets up an IntersectionObserver on unread received messages to mark them as read once they scroll into the upper half of the chat viewport, and attaches a scroll listener to toggle the scroll-to-bottom button.