[EuiDataGrid] Vertically center toolbar additionalControls items

[janmonschke]

Summary

I recently noticed that the alerts table toolbar in security has items that were not vertically centered. I created fixes for that in Kibana but I think the actual fix would be to add align-items: center; to the actual wrapper classes, hence this PR. [Kibana PR]

Alerts table before:

Alerts table after:

TODO:

• Revert [SecuritySolutuion] Fix misaligned toolbar in alerts table kibana#196804 when this PR makes it into an EUI update in Kibana

[cee-chen]

I think my only hesitation is this might affect other data grids in Kibana that have custom toolbar items that prefer top alignment - I'm not sure what those cases might be, but I'm also don't have every Kibana datagrid memorized 😅 I took a quick peek at Discover and Lens and those look like they should be fine, so I'm good with moving forward with this, but we should add a changelog for this to surface it to consumers just in case. I'll add one here shortly

[cee-chen]

🫶 Thank you for this contribution to EUI Jan! It's super appreciated!

[kibanamachine]

Preview staging links for this PR:

• Docs site: https://eui.elastic.co/pr_8085/
• Storybook: https://eui.elastic.co/pr_8085/storybook
• New docs: https://eui.elastic.co/pr_8085/new-docs

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: 1b8e361

History

• 💚 Build #2913 succeeded cb09b19

[janmonschke]

@cee-chen thanks for adding the changelog and reviewing this PR so swiftly :)

[janmonschke]

@cee-chen Is there an epic or sth similar that I could follow to get notified about the next EUI release?

[cee-chen]

No epic, but generally EUI changes will reach Kibana in 1-2 weeks. You can peek at the EUI tag in Kibana. We're going to do another release for the currently in-draft PR so it's likely this change will reach Kibana by end of next Friday.