Removed moz border on focus from EuiSelect.

[ghost]

Description

Old - #3178

Fixes #3171

GIF

Checklist

• Check against all themes for compatibility in both light and dark modes
• Checked in mobile
• Checked in IE11 and Firefox
• Props have proper autodocs
• Added documentation examples
• Added or updated jest tests
• Checked for breaking changes and labeled appropriately
• Checked for accessibility including keyboard-only and screenreader modes
• A changelog entry exists and is marked appropriately

[kibanamachine]

Since this is a community submitted pull request, a Jenkins build has not been kicked off automatically. Can an Elastic organization member please verify the contents of this patch and then kick off a build manually?

[cchaos]

Can you please describe the path you took to find this CSS solution? Why does it need a transparent text color but with a text-shadow?

[ghost]

Mozilla uses text color to determine the color of the dotted border, so we need to use color as transparent for it but for text to be visible, the text shadow should be completely black.

[cchaos]

Please be sure to add a Changelog entry. You can follow the guidelines in the Contributing doc.

[cchaos]

Jenkins test this

[kibanamachine]

Preview documentation changes for this PR: https://eui.elastic.co/pr_3197/

[cchaos]

👍 LGTM, just a nit in regards to language in the changelog. I'll commit and merge.

Thanks @walter-ind!