Reduce caption & paragraph padding

[dr3]

Is your feature request related to a problem? Please describe.
When a paragraph is used inside a caption, which it is in simorgh now, the collective paddings are too great

Describe the solution you'd like
Find a way of making it so if the paragraph is the last element in a caption, it doesn't have a bottom padding.

We need to be careful though, we can't just use 'last-child' as simorgh uses paragraphs like

<Grid Item>
	<Paragraph>
</GridItem>

So it's always the last-child and needs padding.
If you have a figcaption, then the last paragraph element shouldn’t have a padding-bottom.

Current styling

Expected styling

Desired Outcome: The caption has 24px padding from the element below the figure.

Testing notes

• storybook for paragraphs in figcaption

Dev insight: Storybook and manual linking to simorgh to ensure the intended behaviour is implemented in all cases in an article.

• Initially labelled with "Refinement needed"