pushNested method
Add new page in stack pages with nestedprefix
Implementation
void pushNested(Uri uri, {Object? uriState, Object? innerState}) {
updatePage(
RouteState(
uri: '${nestedPrefixPath ?? ''}/$uri'.toUri(),
uriState: uriState,
innerState: innerState,
),
addOne: true,
fromLast: true);
}