This continues #8455 by adding accessibility audits to component integration
tests and fixing associated errors. It adds audits to existing tests rather than
adding separate ones to facilitate auditing the various permutations a
component’s rendering can go through.
It also adds linting to ensure audits happen in component tests. This
necessitated consolidating test files that were scattered.
This makes use of the PR I recently had merged to eslint-plugin-ember-a11y-testing
to add linting that ensures an accessibility audit is called at least once per acceptance
test file. When I have added linting for component tests, it can apply there too.
I added exclusions for the filesystem browser tests, which are covered by behaviors/fs
and for the search test which will involve significant overrides to Ember Power Select
default templates.
