Fix ActionGroup always collapsed button label

[gautamsi]

I was working with extending the Keystone custom pages for List view with custom actions.
Seems like ActionGroup always collapsed and does not allow me adding visible buttons in the ActionBar.

this fixes the behavior which allows me use Actionbar with multiple items in the ActionGroup shown with the same key buttonLabelBehavior

default value is collapse for ActionBar anyways

before:

after:

[changeset-bot]

🦋 Changeset detected

Latest commit: defd04b

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 14 packages

Name	Type
@keystar/ui	Patch
@keystar/docs	Patch
@example/next-app	Patch
@example/next-pages	Patch
keystatic-docs	Patch
@keystatic/core	Patch
@example/astro-content	Patch
@example/astro	Patch
@example/localization	Patch
@example/next-block-builder	Patch
@keystatic/remix-test-app	Patch
@keystatic/templates-astro	Patch
@keystatic/templates-nextjs	Patch
@keystatic/templates-remix	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[jossmac]

Good call 🚀