Revert "[1/2] Notifictation counter"

This reverts commit b366eee73f5bd7c634c13996ec8684dd9466bd08.
Revert "base: show notification count overlay only on notifications > 1"

This reverts commit 9f1d65ae51dc1913f7dbafc1fef9ba4ff42e0f5f.
Revert "[1/2] Notifictation counter"

This reverts commit aedc257f78e4c2e0bf55bbed53d1b3b23744be29.
base: show notification count overlay

Change-Id: Ie4df927531bd8d2869780336b5657f8194141b42