Increase cases under which TabInfoBar autohides

Now if the mouse moves off the TabInfoBar, and the TabInfoBar has
subtabs, it will auto-hide after delay.

Pressing the Open button will allow the TabInfoBar to remain open, as
long as the mouse pointer does not enter/exit the TabInfoBar (so, to get
this sticky behavior, you need to move the mouse down fairly quickly).

Author: keithel-qt

resources/view.qml

@@ -159,6 +159,14 @@ ApplicationWindow {
             onClicked: parent.state = parent.state == "opened" ? "closed" : "opened"
         }
 
+        MouseArea {
+            anchors.fill: parent
+            hoverEnabled: true
+            acceptedButtons: Qt.NoButton
+            onEntered: parent.cancelAutoClose()
+            onExited: parent.closeAfterDelaySubtabless()
+        }
+
     }
 
     Rectangle {