[FEATURE] Add support for assetPrefix

[joanrodriguez]

Is your feature request related to a problem?

I am hosting several different NextJS apps on the same domain.

To prevent collisions of static assets in the _next folder I am using custom assetPrefix.

Unfortunately, this setting is not available in OpenNextJS for Cloudflare.

Describe the solution you'd like

I would like OpenNextJS for Cloudflare to support assetPrefix

Describe alternatives you've considered

• Use Google Cloud Run instead of OpenNextJS
• Keep only one OpenNextJS instance on my domain

@opennextjs/cloudflare version

1.8.2

Additional context

No response

Before submitting

• I have checked that there isn't already a similar feature request
• This is a single feature (not multiple features in one request)

[lcandy2]

same request