Allow static dotfiles to be served

[andreasg123]

Feature request

Please create means to pass options to send when serving static files. In particular, I would like to pass {dotfiles: allow} (and not use the default that is similar to 'ignore', causing a 404 error).

Currently, send is called without the options parameter: https://github.com/vercel/next.js/blob/master/packages/next/next-server/server/serve-static.ts#L10

Is your feature request related to a problem? Please describe.

For development, I need to serve static OME-Zarr images. Each image is represented by a directory structure containing files such as .zgroup and .zattrs: https://ngff.openmicroscopy.org/0.1/#image-layout

Without a means to serve dotfiles, those images cannot be served.

Describe the solution you'd like

I would like to have a property send_options in next.config.js that is passed as a third parameter to send.