Description of the feature
Allow me to mark all comments as read, or dismiss all notifications of comments on Adobe XD online.

Why this is valuable to you
I have to go through lots of feedback, and it would be really helpful if the notifications would get marked as read when I read the comment in the app. In addition, marking all of the notifications as read allows me to clear up the space a lot faster rather than having to manually click all of the notifications. One last thing - it's slow to mark everything as read because the popover that says they've been marked as read obscures the button that I click to access the "Mark as Read" functionality.