Allow setting custom navigation key

[kuhnroyal]

It would be great if we could set a custom GlobalKey<NavigatorState> navigatorKey which defaults to the existing one if not provided. This would make it easier to integrate Sailor with other libraries that also rely on the navigator key.

[gurleensethi]

Hi @kuhnroyal
I am happy to let you know that Sailor v0.6.0 now supports passing a custom navigatorKey.
You can achieve this by using SailorOptions.

Sailor(
  options: SailorOptions(
    navigatorKey: <your_navigator_key>
  ),
)

Looking for more feature requests.