A11y Unit Testing - Timeboxed

[cameron-eyds]

Issue #: /bcgov/entity#17892

Description of changes:

• Implements Axe unit testing integration
• This was time-boxed, to give us an idea of what sort of scope we are dealing with in order to apply an A11Y unit test to our test suites.
• After a few unit tests, typical results required a dozen small items to fix but often in components that nested and not always the component subject of the test itself. This is due to a 'mounted' approach to unit testing which better supports our component library Vuetify.
• Now that we have an idea of how and how much, we can properly estimate the remaining tests to tackle over time, or find a way to include in future tasks.

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of the PPR license (Apache 2.0).

[cameron-eyds]

/gcbrun

[bcregistry-sre]

Temporary Url for review: https://bcregistry-assets-dev--pr-2014-mi67kmwo.web.app

[flutistar]

LGTM

[doug-lovett]

Looks great.