Add redirect support to static build

[dcgauld]

Currently, statically building the site and uploading to S3 doesn't honor redirects from Wagtail. wagtail-nest/wagtail-bakery#14 seems to cover adding support for this, but hasn't had much movement recently (although a custom solution has been suggested here).

It might be that the static build isn't around long enough for this to be worth doing.

https://docs.aws.amazon.com/AmazonS3/latest/dev/how-to-page-redirect.html

[stevejalim]

Happy to take this on

[stevejalim]

While we may not be using redirects yet, having them working and in our back pocket is definitely wortwhile. Thanks for raising @dcgauld!

[stevejalim]

It looks like django-bakery already supports this via BuildableRedirectView: https://github.com/datadesk/django-bakery/blob/a2f1f74b03951450d797ec70cc9872d6c694e1e3/bakery/views/base.py#L166

So it might be worth exploring how to leverage this, rather than write our own.

Even better if we can find a way to work it into wagtail-bakery