Version: 6.12.2Side MenuThis layout allows to implement sidemenus, which can be opened by swiping from one side towards the other side.{ left: { component: {} }, center: { stack: { options: {}, children: [{ component: {} }] } }, right: { component: {} }}Copycenter: Layout#Center component, contains the main application.left?: Layout#Contain the left component layout.right?: Layout#Contain the right component layout.