[Inputs] Append/Prepend API and design updates

[mgadewoll]

Summary

Note

This PR merges a feature branch.

This PR contains changes from:

• [EuiButton][EuiButtonEmpty] Update button paddings #8948
• [Visual Refresh] Update form layout append/prepend API  #9014
• [Inputs] Implement form element append/prepend design updates #9305
• [EuiFormControlButton] Support isLoading state #9328

Why are we making this change?

Screenshots #

Impact to users

QA

Remove or strikethrough items that do not apply to your PR.

General checklist

• Browser QA
  • Checked in both light and dark modes
  • Checked in both MacOS and Windows high contrast modes
    • (emulate forced colors if you do not have access to a Windows machine.)
  • Checked in mobile
  • Checked in Chrome, Safari, Edge, and Firefox
  • Checked for accessibility including keyboard-only and screenreader modes
• Docs site QA
  • Added documentation
  • Props have proper autodocs (using @default if default values are missing) and playground toggles
  • Checked Code Sandbox works for any docs examples
• Code quality checklist
  • Added or updated jest and cypress tests
  • Updated visual regression tests
• Release checklist
  • A changelog entry exists and is marked appropriately
  • If applicable, added the breaking change issue label (and filled out the breaking change checklist)
  • If the changes unblock an issue in a different repo, smoke tested carefully (see Testing EUI features in Kibana ahead of time)
• Designer checklist
  • If applicable, file an issue to update EUI's Figma library with any corresponding UI changes. (This is an internal repo, if you are external to Elastic, ask a maintainer to submit this request)

[mgadewoll]

ℹ️ Merged main on tag 111.1.0 into this feature branch (commit) to enable testing on Kibana.

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: 418f797
• Documentation website
• Storybook

History

• 💚 Build #2482 succeeded 418f797
• 💚 Build #2479 succeeded 6a2422c
• 💚 Build #2478 succeeded 6a2422c
• 💚 Build #2393 succeeded d32f1a2
• 💚 Build #2391 succeeded fee46b7

cc @mgadewoll

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: 418f797

History

• 💚 Build #5637 succeeded 6a2422c
• 💚 Build #5575 succeeded d32f1a2

cc @mgadewoll