Update Component Dependencies

[sareh]

Overall change: Update to use latest dependencies psammead-styles@0.3.2 & gel-foundations@0.3.0

Visually, there should be no changes.

gel-foundations@0.3.0 changed the media query values to be rem instead of em.

Code changes:

• psammead-brand & psammead-figure - updates gel-foundations from v0.1.4 to 0.2.4 (Typography is changed from em to rem, but these components don't have visible text, so there are no visible changes)
• psammead-brand updates psammead-styles from 0.1.6 to 0.3.2 (This adds new colours and fonts, but these should not have any visual change.)
• psammead-brand, psammead-copyright, psammead-paragraph, psammead-headings, psammead-sitewide-links psammead-figure - updates gel-foundations from v0.2.4 to 0.3.0 (This updates the media query values from em to rem. )

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• I have assigned myself to this PR and the corresponding issues
• Tests added for new features
• Test engineer approval

[dr3]

LGTM :)
Tested using storybook, looks great, inc sitewidelinks fix
no clue why snyk isnt happy though

[ChrisBAshton]

Think it just had a temporary outage ^

[ChrisBAshton]

Code looks good - and thanks for adding prettier-ignore to all the tables.

Should do a UX review next 👍

[jamesbrumpton]

👍