Export FileUploadHandlerOptions type

[tryonelove]

Hello,

I wanted to create a simple wrapper around unstable_createFileUploadHandler to accept a flag to either throw or not on MaxPartSizeExceededError.

Unfortunately, the FileUploadHandlerOptions type is not exported from the @remix-run/node package.

So, my suggestion is to export that type, since it's public API of the createFileUploadHandler.

This will allow us to:
a) Extend the options (for my use case)
b) Create these options elsewhere and in the way client wants (factories, custom builders, etc.)

Thanks in advance!