[Datahub] FIX handle error (display msg) also for TMS

[AlitaBernachot]

Description

This PR displays an error message on the map when TMS endpoint fails.
It also forces the display of the source even if the enpoint fails to respond (dropdown was empty before the fix).

Another fix, display api links even if one TMS endpoint is in error:

Architectural changes

None (no update of the sdk needed)

Screenshots

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

How to test

Follow these instructions to confirm an error message is displayed on the map when the TMS endpoint fails to respond.
The dataset should have a (failing) TMS link: https://data.geopf.fr/tms/ to reproduce the error. (NB. the correct url is https://data.geopf.fr/tms/la_ciotat_gpkg_21-05-2025_tms but this is not what we want to test here)

you can add this failing TMS via the XML editor:

<mrd:onLine type="offering" offeringId="53173c7d-7974-4341-8d30-91e69a56d206">
    <cit:CI_OnlineResource>
       <cit:linkage>
          <gco:CharacterString>https://data.geopf.fr/tms/</gco:CharacterString>
       </cit:linkage>
       <cit:protocol>
          <gco:CharacterString>TMS</gco:CharacterString>
       </cit:protocol>
       <cit:name>
          <gco:CharacterString>la_ciotat_gpkg_21-05-2025_tms</gco:CharacterString>
       </cit:name>
    </cit:CI_OnlineResource>
 </mrd:onLine>

or you can use this dataset: https://ign-gpf-test.apps.gs-ch-prod.camptocamp.com/geonetwork/srv/eng/catalog.search#/metadata/zzz_nl_test_wfs_syth_la_ciotat.

Go to the dataset's page (eg. http://localhost:4200/dataset/zzz_nl_test_wfs_syth_la_ciotat) and check the Map overview, it should display an error message.

Try to add other type of sources, it should display the other sources as before.

---

[github-actions]

Affected libs:
feature-dataviz,feature-record,feature-router,database-dump

Affected apps:
datahub,metadata-editor,demo,webcomponents

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

[github-actions]

📷 Screenshots are here!

[coveralls]

coverage: 83.891% (-0.4%) from 84.332%
when pulling 9a7c4a3 on fix-tms-source-error
into 320c95c on main.

[tkohr]

Thanks @AlitaBernachot ! The error message displays on the map, the drop-down renders with the source title, and the API section does not stay empty.

The error message is rather generic, but this is also the case for other fetches by the data.service and getting more info here implies bigger changes in the geospatial-sdk and potentially even ol-mapbox-style if I recall correctly. So I agree to stick to your message for now.