Fix #issue-1769 - provide a clearable option to EuiFieldSearch to sup…

[lozinska]

…port deleting the contents

Summary

Summarize your PR. If it includes design elements include a screenshot or gif.
This PR update the field search with clearable option. Unfortunately I was not able to run a test after I updated my yarn (I was able to run with my old yarn but it cause my test to fail because was not recognizing the yarn command).

Checklist

• Checked in dark mode
• 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

[elasticmachine]

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]

Hi @lozinska , thank you for starting work on #1769 . I'm just wondering what the current state of this PR is? I'm guessing you are still working on the issue since as I run the code, it's just a new docs example but the component doesn't actually support the clearable prop yet.

[lozinska]

Hi @cchaos! Yes I'm still working on this PR. Will try to fix the problem as soon as I can

[cchaos]

No rush at all, just wanted to be sure we weren't missing something. Thanks!

[cchaos]

@lozinska Thanks for attempting this one, but someone else happened to beat you to it. #2723