[App home] Patterns: update descriptions.

[chadwcarlson]

Background

Rewrites descriptions for Patterns: Templates + Compositions.

• Closes https://github.com/Shopify/shopify-dev/issues/67005
• Closes https://github.com/Shopify/shopify-dev/issues/67161

Pairing with the Shopify.dev changes (https://github.com/Shopify/shopify-dev/pull/67947)

These changes can be previewed on https://pr-67947.shopify-dev.shopify.io/

Solution

Descriptions for individual Templates & Compositions are rewritten for clarity.

Checklist

• I have 🎩'd these changes
• I have updated relevant documentation

[chadwcarlson]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• [App home] Additional examples for patterns. #3900
• [App home] Match UX changes for templates - one column. #3897
• [App home] Patterns: update descriptions. #3894 👈 (View in Graphite)
• Move camera API to platform APIs #3921
• 2026-04-rc

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[github-actions]

We detected some changes in packages/*/package.json or packages/*/src, and there are no updates in the .changeset directory. If the changes are user-facing and should cause a version bump, run yarn changeset to track your changes and include them in the next release CHANGELOG. If you are making simple updates to repo configuration, examples, or documentation, you do not need to add a changeset.