Missing metadata for search results

Google Search does not show appropriate metadata for result pages:

We should investigate whether we need to set additional `meta` fields (e.g., OG metadata) in order to improve the appearance in search result pages.

Look at the HTML templates for the site, likely in a templates/ or similar directory, to see existing meta tags. Research Open Graph (OG) metadata and what fields are needed for search engines. Check if there's a base template where meta tags can be added. Test changes by generating the site and inspecting the HTML output.

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