Feature Description

Previously I was using the https://github.com/adityatelange/hugo-PaperMod theme.
Over there you could use:

---
title: test_post
cover:
  image: "og-image.png"
# [...]
  relative: true # To use relative path for cover image, used in hugo Page-bundles
---

to add an Open Graph image to a post.
I found this feature to be very helpful, because the relative part allowed me to put all ALL files for a blog post in one folder:

Problem/Solution

Problem:
Hextra does not allow relative paths for Open Graph images. You have to place them in e.g.: /static/images/og-image.png and call them with

---
title: test_post
params:
  images:
    - "/images/og-image.png"
---

Solution:
Add the same feature as in PaperMod: https://github.com/adityatelange/hugo-PaperMod/wiki/Features#post-cover-image
(I think) here is their implementation: https://github.com/adityatelange/hugo-PaperMod/blob/1cf53273c3ba58f0593ecb7c2befe11274f51a4e/layouts/partials/templates/opengraph.html#L38

Alternatives Considered

Additional Context