Fix missing alt tags for shortcode-related images.

[CoralineAda]

What does this PR accomplish?

• It fixes an issue of missing alt tags from templated HTML fragments

Getting there

• In most cases, it was a matter of passing Params.name through to the alt tag.

Notes for reviewers

• I'm curious about whether we should provide descriptive text for photos of individuals?

[netlify[bot]]

✅ Deploy Preview for ethicalsource ready!

Name	Link
🔨 Latest commit	09b9b330dc352558decf5fd9ae2a59f93d816948
🔍 Latest deploy log	https://app.netlify.com/sites/ethicalsource/deploys/64064b4a1681a2000834b082
😎 Deploy Preview	https://deploy-preview-131--ethicalsource.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site settings.