Update the icons for bad, heart and trash in the system tray example. Fixes: QTBUG-119127 Change-Id: I0b6d4600397a0cb2a5474da04297ab92689358cd Reviewed-by: Oliver Eftevaag <oliver.eftevaag@qt.io> (cherry picked from commit 1878556f25cb86ecefc986a92801c3cbe421ca8b)