Update firefox bookmarks cards focus outline

[marcellamaki]

Summary

Updates focus outline styles on Bookmarks cards to ensure proper styling on firefox

References

Fixes #9192

Before:

Reviewer guidance

Use tab navigation on to test focus outline on bookmarks page in Firefox. Outline should properly surround the card.
Should not cause regressions on Chrome or Safari (or IE)

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Testing checklist

• Contributor has fully tested the PR manually
• If there are any front-end changes, before/after screenshots are included
• Critical user journeys are covered by Gherkin stories
• Critical and brittle code paths are covered by unit tests

PR process

• PR has the correct target branch and milestone
• PR has 'needs review' or 'work-in-progress' label
• If PR is ready for review, a reviewer has been added. (Don't use 'Assignees')
• If this is an important user-facing change, PR or related issue has a 'changelog' label
• If this includes an internal dependency change, a link to the diff is provided

Reviewer checklist

• Automated test coverage is satisfactory
• PR is fully functional
• PR has been tested for accessibility regressions
• External dependency files were updated if necessary (yarn and pip)
• Documentation is updated
• Contributor is in AUTHORS.md

[radinamatic]

Fix confirmed in Firefox on Linux, and no regression noted in Chrome. 👏🏽
Let's wait for @pcenov to confirm that Safari is regression-less, and will approve. Thank you!

[pcenov]

Confirmed - the focus outline is fixed in Safari as well.

[radinamatic]

Manual QA passes, good to go! 💯