feat: Text view, tooltip for enrichments

[dorianmiller]

What do these changes do/fix?

Run the discovery-components from within the Discovery Tooling:

• Tooltip in text view

• Keyword as category in tooltip

• Highlight is 20% opacity

  

• improvements from pass issue: https://github.com/watson-developer-cloud/discovery-components/pull/529#discussion_r1304471348

How do you test/verify these changes?

Run the discovery-components from within the Discovery Tooling.

Have you documented your changes (if necessary)?

None

Are there any breaking changes included in this pull request?

No

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[dorianmiller]

Test tooltip with multiple entries: Uncomment these lines

// tableContent.push({
  //   enrichColor: 'red',
  //   enrichFacetDisplayname: 'short',
  //   enrichValue: ellipsisMiddle('extra super duper long long 44 characters')
  // });
  // tableContent.push({
  //   enrichColor: 'green',
  //   enrichFacetDisplayname: ellipsisMiddle('extra super duper long long 44 characters'),
  //   enrichValue: 'short'
  // });

[dorianmiller]

Thanks for empty tooltip test case. I fixed it.