[PWA-3034] lighthouse mobile home page accessibility scored reduced to 98

[anthoula]

Description

• Add aria label to carousel gallery item links, so Lighthouse Accessibility reaches 100
• fix console warning for tabIndex

Related Issue

Closes PWA-3034.
Closes PWA-2995.

Acceptance

Verification Stakeholders

@dpatil-magento

Specification

Verification Steps

Test scenario(s) for direct fix/feature

Test scenario(s) for any existing impacted features/areas

Test scenario(s) for any Magento Backend Supported Configurations

Is Browser/Device testing needed?

Any ad-hoc/edge case scenarios that need to be considered?

Screenshots / Screen Captures (if appropriate)

Breaking Changes (if any)

Checklist

• I have added tests to cover my changes, if necessary.
• I have added translations for new strings, if necessary.
• I have updated the documentation accordingly, if necessary.

[pwa-studio-bot]

	Messages
📖	Associated JIRA tickets: PWA-3034.
📖	DangerCI Failures related to missing labels/description/linked issues/etc will persist until the next push or next pr-test build run (assuming they are fixed).
📖	Access a deployed version of this PR here. Make sure to wait for the "pwa-pull-request-deploy" job to complete.

Generated by 🚫 dangerJS against d2d6480

[dpatil-magento]

run lighthouse-desktop

[pwa-test-bot]

Successfully started codebuild job for lighthouse-desktop

[dpatil-magento]

run lighthouse-mobile

[pwa-test-bot]

Successfully started codebuild job for lighthouse-mobile

[dpatil-magento]

run cypress

[pwa-test-bot]

Successfully started codebuild job for cypress

[pwa-studio-bot]

	Fails
🚫	node failed.
🚫	Cypress tests in the following files did not pass 😔. All tests must pass before this PR can be merged user should be able to update their address book: CypressError: Timed out retrying after 60000ms: `cy.wait()` timed out waiting `60000ms` for the 1st request to the route: `gqlSignInAfterCreateMutation`. No request ever occurred. https://on.cypress.io/wait

Log

ERROR ON TASK: cypressTests

Error:  Danger had errors running. See message(s) above for more details.
danger-results://tmp/danger-results.json

Generated by 🚫 dangerJS against d2d6480

[dpatil-magento]

QA Approved