Issue #3418489 by ahsannazir, m4olivei, patrickfgoddard, Amandeep123,...

Issue #3418489 by ahsannazir, m4olivei, patrickfgoddard, Amandeep123, adwivedi008, ckrina, Kanchan Bhogade, rkoller, xjm, smustgrave, baluv3, kostyashupenko, plopesc, finnsky: Choose an icon for the Announcements link

(cherry picked from commit ebb6a6e3)