Moves <TextHighlight /> component to @wordpress/components package

[getdave]

Closes #18074.

This PR extracts the TextHighlight used within LinkControl into a standalone component.

TextHighlight is a component which applies a <mark> tag around all/any matching strings within a string of text. This is useful for highlighting search terms within a string of text.

How has this been tested?

• Manually verifying LinkControl hasn't broken and search terms are still highlighted.
• Checking Storybook behaviour.

Screenshots

Types of changes

New feature (non-breaking change which adds functionality).

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows the accessibility standards.
• My code has proper inline documentation.
• I've included developer documentation if appropriate.
• I've updated all React Native files affected by any refactorings/renamings in this PR. .

[gziolo]

I was wondering whether this component could be refactored to use this new experimental API just introduced by @nerrad in #17376:
__experimentalCreateInterpolateElement
#18623 illustrates how it can be used in action. In this case, it would be possible to avoid wrapping text with span elements.

[getdave]

Thanks I'm going to get back to this just as soon as I can. Likely this Friday.

[getdave]

I was wondering whether this component could be refactored to use this new experimental API just introduced by @nerrad in #17376:
__experimentalCreateInterpolateElement
#18623 illustrates how it can be used in action. In this case, it would be possible to avoid wrapping text with span elements.

@gziolo I was intending to keep the <span> as it might be useful to be able to style things but I've realised that perhaps it's not necessary as CSS will let us style the default case and have overides for the highlight text anyway.

As a result, I've refactored to the new experimental API.

[gziolo]

It looks like you need to regenerate one of the snapshots generated from Storybook story. Otherwise, Jest seems to be happy about the proposed refactor :)

Nice work, thanks for applying my feedback.

Feel free to merge once you get into agreement with Travis 😄

[getdave]

Thanks for the reviews @gziolo! Much appreciated.