fix(combobox): add ARIA attributes and update translations for toggle button

[anna-lach]

This pull request updates the accessibility implementation of the combobox toggle button and streamlines localization strings for the component. The main focus is on simplifying the button's aria-label usage, improving the use of aria-expanded for screen readers, and consolidating translation keys across multiple languages.

Accessibility and UI Improvements:

• The combobox button now always uses a static aria-label of "Options" instead of toggling between "Show the options" and "Hide the options". The open/closed state is now communicated using the aria-expanded attribute, which updates appropriately as the popover opens and closes. [1]], [2]], [3]])
• Associated tests have been updated to reflect these changes, verifying the correct use of aria-label and aria-expanded on the button. [1]], [2]])

Localization and Translation Updates:

• The localization keys for "Show the options" and "Hide the options" have been removed in favor of a single "Options" key, which is now used in all supported languages (Spanish, Italian, Dutch, Polish). Corresponding translation files and XLF resources were updated to match. [1]], [2]], [3]], [4]], [5]], [6]], [7]], [8]])

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🦋 Changeset detected

Latest commit: e0b0115

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

This PR includes changesets to release 2 packages

Name	Type
@sl-design-system/combobox	Patch
@sl-design-system/locales	Patch

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[Copilot]

Pull request overview

Updates the sl-combobox toggle button’s accessibility labeling strategy and aligns localized strings across supported locales. This improves screen reader behavior by relying on aria-expanded for state while keeping a consistent button label, and removes now-unneeded translation keys.

Changes:

• Updated the combobox toggle button to use a static localized aria-label (“Options”) and added aria-expanded to expose open/closed state.
• Updated combobox unit tests to assert the new aria-label and aria-expanded behavior.
• Consolidated localization by removing showOptions / hideOptions keys and introducing a single sl.combobox.options key in all shipped locales.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
packages/components/combobox/src/combobox.ts	Switches toggle button labeling to static “Options” and adds aria-expanded state exposure.
packages/components/combobox/src/combobox.spec.ts	Updates assertions to validate static aria-label and aria-expanded toggling.
packages/locales/src/es-ES.ts	Replaces show/hide strings with new sl.combobox.options template entry.
packages/locales/src/es-ES.xlf	Replaces show/hide translation units with sl.combobox.options.
packages/locales/src/it.ts	Replaces show/hide strings with new sl.combobox.options template entry.
packages/locales/src/it.xlf	Replaces show/hide translation units with sl.combobox.options.
packages/locales/src/nl.ts	Replaces show/hide strings with new sl.combobox.options template entry.
packages/locales/src/nl.xlf	Replaces show/hide translation units with sl.combobox.options.
packages/locales/src/pl.ts	Replaces show/hide strings with new sl.combobox.options template entry.
packages/locales/src/pl.xlf	Replaces show/hide translation units with sl.combobox.options.

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[Copilot]

Pull request overview

Copilot reviewed 12 out of 12 changed files in this pull request and generated 1 comment.