Update object code to use new containers

dialog.go

@@ -16,7 +16,6 @@ type DialogKind int; const (
 // Dialog is a modal dialog window.
 type Dialog struct {
 	tomo.Window
-	controlRow *Container
 }
 
 type clickable interface {
@@ -65,13 +64,11 @@ func NewDialog (kind DialogKind, parent tomo.Window, title, message string, opti
 			})
 		}
 	}
-	dialog.controlRow = NewInnerContainer(layouts.ContractHorizontal, options...)
-	dialog.controlRow.SetAlign(tomo.AlignEnd, tomo.AlignEnd)
-
-	dialog.SetRoot(NewOuterContainer (
+	
+	dialog.SetRoot(NewRoot (
 		layouts.Column { true, false },
-		NewInnerContainer(layouts.ContractHorizontal, icon, messageText),
-		dialog.controlRow))
+		NewContentSegment(layouts.ContractHorizontal, icon, messageText),
+		NewOptionSegment(nil, options...)))
 	return dialog, nil
 }