fix: og:image

[38elements]

What changed / motivation ?

This is current og:image.

<meta data-rh="true" name="og:image" content="/img/stylex-cover-photo.png">

og:image is url, not path. Therefore, this fixed it. https://ogp.me/

Linked PR/Issues

Additional Context

Pre-flight checklist

• [x] I have read the contributing guidelines Contribution Guidelines
• [x] Performed a self-review of my code

[nmn]

Thanks