Datahub: Get logoUrl from group as fallback

[tkohr]

Description

This PR gets the logoUrl for a record from the publishing group as a fallback if

• no logoUrl is present in the record metadata and
• no logoUrl can be determined by the organization - group matching based on name and emails.

It might be worth noting that this also impacts the thumbnail in the search preview and the contact block on the record page, where the organization logo already seems to be used as a fallback before using the placeholder. As this PR will help to find organization/group logos in more cases, the placeholder will likely be less used in these two places as well.

Quality Assurance Checklist

• Commit history is devoid of any merge commits and readable to facilitate reviews
• If new logic ⚙️ is introduced: unit tests were added
• If new user stories 🤏 are introduced: E2E tests were added
• If new UI components 🕹️ are introduced: corresponding stories in Storybook were created
• If breaking changes 🪚 are introduced: add the breaking change label
• If bugs 🐞 are fixed: add the backport <release branch> label
• The documentation website 📚 has received the love it deserves

This work is sponsored by MEL.

[github-actions]

Affected libs: api-repository, feature-catalog, feature-record, feature-router, feature-search, feature-map, feature-dataviz, feature-auth, common-fixtures, api-metadata-converter, feature-editor, ui-search, ui-elements, ui-catalog, util-shared, ui-widgets, ui-inputs, ui-layout, ui-map,
Affected apps: metadata-editor, datahub, demo, webcomponents, map-viewer, search, datafeeder, metadata-converter,

• 🚀 Build and deploy storybook and demo on GitHub Pages
• 📦 Build and push affected docker images

[coveralls]

coverage: 83.312% (-0.03%) from 83.342%
when pulling 6bb6ab1 on group-logos
into 1189d39 on main.

[jahow]

Thanks, tested and it works really well!! I made a suggestion to improve the code :)