[TIMOB-9119] iOS: Titanium.Window - The label "This is a normal window" is partially covered by a Navbar

function modalWindow(){
    var b = Ti.UI.createButton({title:'close'});
    var a = Ti.UI.createButton({title:'open win'});
      
    var w = Ti.UI.createWindow({
        backgroundColor:'red',
        rightNavButton:b,
        leftNavButton:a
    });
  
    w.add(Ti.UI.createLabel({text:'This is a normal window', top:20, textAlign:'center', height:40, backgroundColor:'white'}));
  
    b.addEventListener('click', function(){
        w.close();
    });
    a.addEventListener('click', function(){
        normalWindow().open();
    });
    return w;
}
function normalWindow(){
    var b = Ti.UI.createButton({title:'close',width:200,height:40, top:100});
      
    var w = Ti.UI.createWindow({
        backgroundColor:'blue'
    });
    w.add(Ti.UI.createLabel({text:'This is a normal window', top:20, textAlign:'center', height:40, backgroundColor:'white'}));
    w.add(b);
    b.addEventListener('click', function(){
        w.close();
    });
    return w;
}
(function(){
    var win = Ti.UI.createWindow({
        backgroundColor:'green'
    });
  
    var btn = Ti.UI.createButton({
        width:100,
        height:40,
        title:'open modal'
    });
  
    win.add(btn);
  
    btn.addEventListener('click', function(){
        modalWindow().open({modal:true});
    });
  
    win.open();
})();