docs(pie-docs): DSW-2732 add forms pattern pages

[nindyahapsari]

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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).
• I have reviewed the PIE Storybook/PIE Docs PR preview.
• I have reviewed visual test updates properly before approving.
• If changes will affect consumers of the package, I have created a changeset entry.
• I have filled out the DS Review Tracker checklist (Moving PR to "Ready to Review")

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• If a changeset file has been created, I have tested these changes in PIE Aperture using the /test-aperture command.

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Testing

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Task	Link
Aperture PR	🔗
NextJS 15 deployment	🔗
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Reviewer checklists (complete before approving)

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Reviewer 1 - @fernandofranca

• I have reviewed the PIE Storybook/PIE Docs PR preview.
• I have verified that all acceptance criteria for this ticket have been completed.
• [-] I have reviewed the Aperture changes (if added)
• If there are visual test updates, I have reviewed them.

Reviewer 2

• I have reviewed the PIE Storybook/PIE Docs PR preview.
• I have verified that all acceptance criteria for this ticket have been completed.
• [-] I have reviewed the Aperture changes (if added)
• If there are visual test updates, I have reviewed them.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 4db3f70

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes changesets to release 1 package

Name	Type
@justeattakeaway/pie-docs	Minor

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[fernandofranca]

Good stuff!

[joshua-king-JET]

I have had a look from a design perspective and approve the changes made 👍