[Feature] Show history of added photos in a shared album's Activity view

I have searched the existing feature requests to make sure this is not a duplicate request. • Yes The feature As of now, the Activity (the chat bubble icon) on a shared album only shows likes for the album as a whole as well as any chat messages. Compared to App-Which-Must-Not-Be-Named, the Activity view is missing: 1. History of who added what photos at what time. ~~2. Who has liked a specific photo (and when).~~ EDIT: I see that this has been added. 2. Where each person in the album is in terms of when the last time they viewed the album was relative to photo-adds and likes that may have occurred after their last visit. These are numbered in the order that I personally prioritize them. To expand on #1: Some people are late to add their photos. Without a clear history of what and when they added a photo(s), it can be a needle in a haystack to scroll through the album and notice a photo(s) that wasn't there before. Platform • Server …