[EuiSelectable] call searchProps functions on search/change

[krosenk729]

Summary

Resolves onChange issue in searchProps as mentioned in #4132

Checklist

• Check against all themes for compatibility in both light and dark modes
• Checked in mobile
• Checked in Chrome, Safari, Edge, and Firefox
• Props have proper autodocs
• Added documentation
• Checked Code Sandbox works for the any docs 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?

[cla-checker-service]

💚 CLA has been signed

[cchaos]

👋 Welcome @krosenk729 ! Would you please sign the CLA linked below. Be sure to use the same email address linked to your Github account. I'll get our CI (Jenkins) started for you which will run our tests and get a preview built.
Jenkins, test this

[kibanamachine]

Preview documentation changes for this PR: https://eui.elastic.co/pr_4153/

[thompsongl]

The main changes look good; thank you!

Just need some adjustments to the complex destructuring bit. You'll also want to add a changelog entry under the Bug fixes section (use previous entries as examples).

[thompsongl]

Hey @krosenk729, checking in to see if you still plan to make additional changes to this PR.
If so, great! If not, we're more than happy to take it over and make the updates.
Thanks for the help so far!

[krosenk729]

Thanks for the ping @thompsongl and sorry for the delay. changes have been made!

[thompsongl]

Thanks, @krosenk729!

[thompsongl]

jenkins test this

[kibanamachine]

Preview documentation changes for this PR: https://eui.elastic.co/pr_4153/