QmlDesigner: Fix margin in the states list

Change-Id: I322dea23a598d7069e672920cb494eea8e697495
Reviewed-by: Tim Jenssen <tim.jenssen@digia.com>

share/qtcreator/qmldesigner/statesEditorQmlSources/StatesDelegate.qml

@@ -74,7 +74,7 @@ Rectangle {
         font.pixelSize: 11
         anchors.left: parent.left
         // use the spacing which the image to the delegate rectangle has
-        anchors.leftMargin: (delegateWidth - delegateStateImageSize) / 2
+        anchors.leftMargin: 4
         anchors.right: removeStateButton.left
         style: DesignerTextFieldStyle {}
         readOnly: isBaseState