ecr-viewer view more button is missing aria-expanded attribute

[BobanL]

Action Requested

• view more/ view less buttons should contain aria-expanded attribute depending on if it is open or closed

Acceptance Criteria

• view more and view less contain aria-expanded attribute.

Additional Information

• https://cdc-devtools.dequecloud.com/issues/669a8cd8-603e-4084-adcf-5f7fbbe92098
• https://docs.deque.com/issue-help/1.0.0/en/aria-state-property-missing