PLAYNEXT-1325 Add new swimlane for audio livesteams

[mutaben]

Description

For the implementation of PAC audio, this PR implements the new audio livestreams swimlane in the new page.
It shows a horizontal swimlane with square images for each radio channel logo.

Changes Made

• Add a new case liveAudioSquaredSwimlane in the SectionLayout enum
• Return this case from the PageViewModel.layout when the mediaType is AUDIO for the contentSection
• Call the already defined radioLivestreams(for: contentSection.vendor, contentProviders: .all) endpoint for the publisher
• Add a new layout with a new cell (LiveRadioSquaredCell and LiveRadioSquaredCellSize)
• Detect the new case and propagate the right calls (Content.title, Content. publisher(...), PageViewController.layoutSection(...), PageViewController.MediaCell.body)

Checklist

• I have followed the project's style guidelines.
• I have performed a self-review of my own changes.
• I have made corresponding changes to the documentation.
• My changes do not generate new warnings.
• I have tested my changes and I am confident that it works as expected and doesn't introduce any known regressions.
• I have reviewed the contribution guidelines.

[pyby]

To check after:

• SRGDataProvider release.
• Missing translations. make generate-translations said all is good.

[defagos]

I see that @pyby has reviewed this PR. We already have a livestream tab which displays the current program on air but leads to confusion for our users (e.g. between C3 video and audio).

Would it be an opportunity to make things simpler and more obvious for our users? What will happen to the live tab audio livestreams once the audio homepage has been deployed? Will the corresponding section be removed to avoid redundant access to the same content? Will the new section be moved to the live view instead? Will both coexist?

[mutaben]

Will the corresponding section be removed to avoid redundant access to the same content? Will the new section be moved to the live view instead? Will both coexist?

Would it be an opportunity to make things simpler and more obvious for our users? What will happen to the live tab audio livestreams once the audio homepage has been deployed? Will the corresponding section be removed to avoid redundant access to the same content? Will the new section be moved to the live view instead? Will both coexist?

@defagos

Those are interesting questions.

I don't know exactly what is planned for the direct tab once this new Play Audio Curation page is deployed, but those are excellent questions indeed. Since this epic reached the phase where it is refined and tickets are created, I assume those cases have been considered. Bringing @Loic-Dumas in the discussion.