mobile-widgets/qml: close Export page after export (or cancel)

Remove page from pageStack, which removes the page from user view.

Signed-off-by: Jan Iversen <jan@casacondor.com>

mobile-widgets/qml/Export.qml

@@ -19,9 +19,11 @@ Kirigami.ScrollablePage {
 		title: radioGroup.current.text
 		onAccepted: {
 			manager.exportToFile(selectedExport, fileUrls, anonymize.checked)
+			pageStack.pop()
 			close()
 		}
 		onRejected: {
+			pageStack.pop()
 			close()
 		}
 	}