dialog: use popup dialogs to replace the existing Qt.labs.platform ones
Dialog in Qt.labs.platform which is used to be native in Qt 5.15 cannnot be accessed in Qt 6.2 for now, use popup dialogs instead 1. Add tittle 2. DropShadow revisit 3. Dim properly Change-Id: I8804ae0c30e3450c9a800d9a1c3946ff0bf44b46