Add 'Mark all as read' button

Authored by MtDu on Aug 12 2017, 2:00 PM.

Description

Add 'Mark all as read' button

Currently, the 'Mark all as read' button exists only for JS users.
This patch adds the button for no-JS users as well.

Bug: T96061
Change-Id: I1a62c56306597209540ffd694c8fb7b2a92885c9

Details