Blog author social platforms shorthands are not normalized for inline authors

[slorber]

Description

When authors are provided inline (not in authors.yml) authors handle/username shorthand are not normalized to full URLs, leading to incorrect links.

Reproducible demo

No response

Steps to reproduce

Create a blog post

slug: first-blog-post
title: First Blog Post
authors: 
  - name: John Doe
    title: Software Engineer
    socials: 
      github: slorber

Expected behavior

The author GitHub icon link should be https://github.com/slorber

Actual behavior

The author GitHub icon link shouldn't be not http://localhost:3000/slorber