[Draft][Do not merge] Major Version Bump - Demo for terra-clinical accessibility changes

[neilpfeiffer]

Summary

Draft PR to demo the changes for accessibility with deployment link.

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Deployment Links

• https://(build-is-broken).herokuapp.com/home/terra-clinical/home

Terra-Clinical-Header 1/ Clinical-Header: [./components/terra-clinical-header/clinical-header] https://(build-is-broken).herokuapp.com/components/terra-clinical-header/clinical-header/clinical-header

2/ Accessibility Guide: [./components/terra-clinical-header/clinical-header/accessibility-guide] https://(build-is-broken).herokuapp.com/components/terra-clinical-header/clinical-header/accessibility-guide

(need to add additional changes)

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Do Not Merge --- For Demonstration Only

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