WORLDSERVICE-280: Adds grid storybook example with media

[Isabella-Mitchell]

PR to support WORLDSERVICE-280 - Promo Media Icon not showing in hierarchical curation in large breakpoints

Overall changes

Adds grid curation example with media icon. Ready for developers who pick up WORLDSERVICE-280.

Story in desktop breakpoint (no media icon or duration)

Story in breakpoint (media icon/ duration is visible)

Code changes

• Adds fixture data
• Adds story variation
• Adds chromatic snapshot

Testing

1. Go to Storybook permalink, go to Curation Grid Hierarchical component
2. Use 'controls' in right hand menu to select 'withMedia'

Helpful Links

Add Links to useful resources related to this PR if applicable.

Coding Standards

Repository use guidelines

[Louis-Matsika]

is this what I'm supposed to see?

[karinathomasbbc]

Are we expecting a snapshot too? If not, should we? It might be good if we can see the visual diff once we have resolved WORLDSERVICE-280.

[Isabella-Mitchell]

Are we expecting a snapshot too? If not, should we? It might be good if we can see the visual diff once we have resolved WORLDSERVICE-280.

Done