fix: add docs prefix to img src paths in fragments

[iansk]

Fix issue with images in fragments not loading.

Fix #235

Test URLs:

• Before: https://main--prisma-cloud-docs-website--hlxsites.hlx.page/
• After: https://iansk-fragment-imgs--prisma-cloud-docs-website--hlxsites.hlx.page/

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Commits

* [f790c4b](https://github.com/hlxsites/prisma-cloud-docs-website/pull/236/commits/f790c4b52915e5b36d373f27a7d03c2b8781ca41) :white_check_mark: (latest) * [7e53144](https://github.com/hlxsites/prisma-cloud-docs-website/pull/236/commits/7e53144821e8ab551776cce6878ff9c478390ca6) :white_check_mark:

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[iansk]

@maxakuru Can you please review my changes?

Images from fragments aren't loading. I ported over two fixes you previously made to the article block:

Issue: #193 - [Pre-prod site] Images not loading Fixed here: PR #196

Issue: #221 - Down sampled gifs Fixed here: PR #222