chore(docs): Replace ActionGroup with ActionList

[rebeccaalpert]

What: Part of patternfly/patternfly#8486

This button went from full-width to not (I didn't see a prop for this):
http://localhost:8002/components/login-page/react/basic

Others have slight spacing changes above or horizontally, but tabbing looks better.

I didn't see any internal usage in form, but we use the action group naming convention in certain styles, etc.

Additional issues:
patternfly/patternfly#8527

Summary by CodeRabbit

Summary by CodeRabbit

• Documentation

  • Updated Form documentation to include additional related action list components.

• New Features

  • Added an isAction prop to FormGroup to enable the “action” styling variant.

• Refactor

  • Updated Form, login, search, and button examples to render action buttons using the ActionList layout, preserving existing labels, behaviors, validation, loading, and conditional rendering.

• Deprecation

  • Marked ActionGroupProps as deprecated.

• Tests

  • Updated Cypress selectors for advanced search action buttons to match the new action list structure.
  • Added a unit test to verify FormGroup action variant styling.

[coderabbitai]

Walkthrough

ActionGroup is marked deprecated. FormGroup gains an action modifier, while Form examples, login, search, and demo components replace ActionGroup layouts with ActionList structures and preserve existing button behavior.

Changes

ActionList migration

Layer / File(s)	Summary
Form action migration packages/react-core/src/components/Form/ActionGroup.tsx, packages/react-core/src/components/Form/FormGroup.tsx, packages/react-core/src/components/Form/examples/*, packages/react-core/src/components/Form/__tests__/FormGroup.test.tsx	Deprecates ActionGroupProps, adds and tests FormGroup isAction, updates Form documentation metadata, and migrates Form example action controls to ActionList structures.
Component action migration packages/react-core/src/components/LoginPage/LoginForm.tsx, packages/react-core/src/components/SearchInput/AdvancedSearchMenu.tsx, packages/react-integration/cypress/integration/searchinput.spec.ts	Replaces action containers with ActionList components while preserving button properties and callbacks, and updates the integration-test selector.
Demo action migration packages/react-core/src/demos/Button/examples/ButtonProgress.tsx, packages/react-core/src/demos/SearchInput/examples/SearchInputAdvancedComposable.tsx	Migrates demo action layouts without changing existing interaction logic.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related issues

• patternfly/patternfly#8486 — Directly addresses deprecating ActionGroup and replacing it with ActionList in Form examples.

Suggested reviewers: kmcfaul, thatblindgeye

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly reflects the main change: replacing ActionGroup with ActionList across the PR.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[rebeccaalpert]

Ah, looking at Core, it looks like the action groups would still be in form groups - we lost that with the switch. That should restore the spacing differences. I can add that here, assuming Core is the example to follow. Going to move this back to Draft.

[rebeccaalpert]

Should now match structure in Core.