Fix pointerhandlers/fakeFlickable example

TapHandlerButton is not in this example: we just call it Button.
Amends 8503f884bb

Pick-to: 6.2
Change-Id: I49bc6081f05642cd938a257c14c10497bfafb8a8
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

examples/quick/pointerhandlers/fakeFlickable.qml

@@ -136,13 +136,13 @@ Rectangle {
             Row {
                 id: buttonRow
                 spacing: 4
-                TapHandlerButton {
+                Button {
                     text: "⭯"
-                    onClicked: ff.rotation -= 45
+                    onTapped: ff.rotation -= 45
                 }
-                TapHandlerButton {
+                Button {
                     text: "⭮"
-                    onClicked: ff.rotation += 45
+                    onTapped: ff.rotation += 45
                 }
             }
         }