fix:Use FORRT banner as default social sharing image

[richarddushime]

Description

When the Steering Committee page was shared on social platforms, previews showed the first image on the page instead of FORRT logo.

Cause: The default sharing image was set to FORRT_banner.svg. Many platforms don’t use SVG for link previews and fall back to the first in the HTML, which on that page was a member profile.

Change: Set the site-wide default sharing image to img/FORRTbanner.webp in config/_default/params.toml.

Thanks to Adira and flavio

Type of Change

• Bug fix

Testing

• Tested locally
• Previewed on staging.forrt.org
• Not tested yet

Checklist

• Self-reviewed my changes
• Verified links and formatting are correct
• No new warnings or errors

Notes

[github-actions]

👍 All image files/references (if any) are in webp format, in line with our policy.

[LukasWallrich]

✅ Staging Deployment Status

This PR has been successfully deployed to staging as part of an aggregated deployment.

Deployed at: 2026-03-12 11:04:02 UTC
Staging URL: https://staging.forrt.org

The staging site shows the combined state of all compatible open PRs.

[richarddushime]

@LukasWallrich it Looks Good

OPEN GRAPH CHECKER

preview checker

[LukasWallrich]

Thanks @richarddushime. This is obviously a very boring image, so ok as a fallback, but can we document how to specify another image (maybe in your new contributing instructions?)

[github-actions]

📝 Spell Check Results

Found 8 potential spelling issue(s) in this PR:

📄 content/clusters/cluster7.md

Line	Issue
130	Tham ==> Than
171	Tham ==> Than
201	Tham ==> Than

📄 content/educators-corner/004-Teaching-why-how-replication/index.md

Line	Issue
94	pre-selected ==> preselected

📄 content/glossary/english/statistical_significance.md

Line	Issue
5	pre-selected ==> preselected

📄 content/pedagogies/003-CREP/index.md

Line	Issue
86	pre-selected ==> preselected
126	pre-selected ==> preselected
134	pre-selected ==> preselected

---

ℹ️ How to address these issues:

1. Fix the typo: If it's a genuine typo, please correct it.
2. Add to whitelist: If it's a valid word (e.g., a name, technical term), add it to .codespell-ignore.txt
3. False positive: If this is a false positive, please report it in the PR comments.

_{🤖 This check was performed by codespell}

[LukasWallrich]

Looks good