Squashed commit of the following:

commit 5f31eb1e78
Author: Uwe Rathmann <Uwe.Rathmann@tigertal.de>
Date:   Tue Oct 17 12:14:42 2023 +0200

    QskDrawer reimplemented, can be open by a swipe gesture now. more work
    to do

examples/gallery/main.cpp

@@ -62,10 +62,6 @@ namespace
         Drawer( QQuickItem* parent = nullptr )
             : QskDrawer( parent )
         {
-#if 1
-            setOverlay( true );
-#endif
-
             auto box = new QskLinearBox( Qt::Vertical, this );
 
             box->setSection( QskAspect::Header );

src/controls/QskDrawer.cpp

@@ -218,6 +218,7 @@ QskDrawer::QskDrawer( QQuickItem* parentItem )
     setZ( 1 );
 #endif
 
+    setOverlay( true );
     setPolishOnResize( true );
 
     setPopupFlag( PopupFlag::CloseOnPressOutside, true );