[applets/notifications] Try to not have the notification count numbers overflow the icon

Summary:
When the notification count is in double digits, the numbers can overflow the icons which is meant to contain them.

This patch checks if there is more than 1 digit and then slightly reduces the size of the numbers.

Subscribers: plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D22878

applets/notifications/package/contents/ui/CompactRepresentation.qml

@@ -94,7 +94,7 @@ MouseArea {
         PlasmaComponents.Label {
             id: countLabel
             anchors.centerIn: parent
-            width: Math.round(Math.min(parent.width, parent.height) * 0.75)
+            width: Math.round(Math.min(parent.width, parent.height) * (text.length > 1 ? 0.67 : 0.75))
             height: width
             fontSizeMode: Text.Fit
             font.pointSize: 1024