[SRM-1608] add function to remove new lines

[lambry]

Issue: https://digital-vic.atlassian.net/browse/SRM-1608

What I did

• Add a function to remove 'new lines' added via the CMS, these 'new lines' aren't shown on the frontend and cause hydration mismatch errors.

Checklist

For all PR's

• I've added relevant changes to the project Readme if needed
• I've updated the documentation site as needed
• I have added tests to cover my changes (if not applicable, please state why in a comment)

For new UI components only

• I have added a storybook story covering all variants
• I have checked a11y tab in storybook passes
• I have added cypress component tests (if the component is interactive)
• Any events are emitted on the event bus using emitRplEvent

[cypress]

ripple-framework    Run #2312

Run Properties:   Passed #2312  •  af6d0950e1: chore(@dpc-sdp/ripple-tide-api): rename function to getPlainText

Project	ripple-framework
Branch Review	feature/hydration-errors
Run status	Passed #2312
Run duration	10m 10s
Commit	af6d0950e1: chore(@dpc-sdp/ripple-tide-api): rename function to getPlainText
Committer	David Featherston
View all properties for this run ↗︎

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Test results
Failures	0
Flaky	0
Pending	0
Skipped	0
Passing	207
View all changes introduced in this branch ↗︎