Move media icon type in the top left corner on TV

[MGaetan89]

Pull request

Description

In this PR, I've moved the media type icon in the top left corner of the media card on TV. I've also added the duration of the media in both demo apps.

Changes made

• Move the media type icon in the top left corner of the media card on TV.
• Display the media duration in both demo apps.
• Move some display logic in pillarbox-demo-shared to reduce code duplication.

Screenshots

Description	Light mode	Dark mode
Media card on TV	N/A
Media card on mobile

Checklist

• Your branch has been rebased onto the main branch.
• APIs have been properly documented (if relevant).
• The documentation has been updated (if relevant).
• New unit tests have been written (if relevant).
• The demo has been updated (if relevant).
• All pull request status checks pass.

[MGaetan89]

I've put this PR in draft, so I can change the duration formatting logic to match what was explained here: SRGSSR/pillarbox-apple#644 (comment)