feat(module): support server-specific runtime configuration

[doseofted]

Types of changes

• Bug fix (a non-breaking change which fixes an issue)
• New feature (a non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Description

This allows server-side requests to make use of a separate URL by making full use of runtimeConfig in Nuxt. For instance, I may access a locally-running Strapi instance server-side at http://strapi-instance:1337 while client-side I would use https://strapi.example.com.

This is a functionality that has been very helpful in containerized environments, provided as an option by modules like nuxt/axios in Nuxt2.

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes (if not applicable, please state why)

I was unable to find tests within the repository.

[benjamincanac]

Thanks @doseofted!