refactor(pie-icon-button): DSW-2376 tests to use @playwright/test

[siggerzz]

Describe your changes (can list changeset entries if preferable)

Author Checklist (complete before requesting a review, do not delete any)

• I have performed a self-review of my code.
• I have added thorough tests where applicable (unit / component / visual).
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Reviewer checklists (complete before approving)

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Reviewer 1 - @JoshuaNg2332

• I have reviewed the PIE Storybook/PIE Docs PR preview.
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Reviewer 2

• I have reviewed the PIE Storybook/PIE Docs PR preview.
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• [-] N/A I have reviewed the Aperture changes (if added)
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[changeset-bot]

⚠️ No Changeset found

Latest commit: d1a5242

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[pie-design-system-bot]

	Fails
🚫	You have unchecked checklist items outside the "Not-applicable Checklist items" section. Please ensure all unchecked checkboxes are moved to the appropriate section.
🚫	You have unchecked checklist items in Reviewer 2's section. Please ensure all items are addressed before approval.

Generated by 🚫 dangerJS against d1a5242

[JoshuaNg2332]

Description change

Suggested change

	description: 'The selector for the modal container',
	description: 'The selector for the icon button container',

[JoshuaNg2332]

Small change required.

Spotted small text change