Media Indicator - remove spacing on the low-level component

[DenisHdz]

Resolves #NUMBER

Overall change:
After passing the inLine prop added in this PR to the Media Indicator used in the Index Alsos, we've realized that the MediaIndicatorWrapper styles are not suitable.

Before:

After:

For this reason, we've decided to remove the spacing on the Media Indicator so we can add them at a top-level in a separate PR (Story Promo/Index Alsos).

Code changes:

• Remove padding and height from the MediaIndicatorWrapper
• Remove the Time element from the Media Indicator
• Update stories
• Remove topStory test

---

• I have assigned myself to this PR and the corresponding issues
• Automated jest tests added (for new features) or updated (for existing features)
• This PR requires manual testing

[sareh]

Seems like we still are using this GEL_SPACING_HLF,

When looking at where it's used, it's applied to the Time element
https://github.com/bbc/psammead/blob/302a5857b799b4f2cd192a0ccfe468ba5bd86487/packages/components/psammead-media-indicator/src/index.jsx#L33

Makes me think that this should be passed in as a Child, rather than be within this component.
We already have the children prop.

[sareh]

A consequence of the change would be that other components that use psammead-media-indicator would need to be updated.

I’ve looked at Psammead and Simorgh to see how much work this would be.
Psammead:
Stories and tests/test helpers in these two components, that can be carried out in one PR

packages/components/psammead-grid/src/index.stories.jsx:
packages/components/psammead-story-promo/src/index.stories.jsx:
packages/components/psammead-story-promo/src/index.test.jsx:
packages/components/psammead-story-promo/testHelpers/IndexAlsosContainer.jsx:

(Note, the top-level dependency in psammead would need to be updated)

In Simorgh, the changes would be to these containers - being carried out as part of the Desktop redesign: bbc/simorgh#5139

src/app/containers/StoryPromo/IndexAlsos/index.jsx:
src/app/containers/StoryPromo/MediaIndicator/index.jsx:

[OlgaLyubin]

There is still a top story photogallery story even though topStory styles/prop got removed

[OlgaLyubin]

Everything looks good, inline toggle works properly now 👍

[sareh]

👍 Changes look good.
Looking at the ChromaticQA snapshots, there is a visual difference in the height for the 'inline' version of the MediaIndicator - this is expected.