fix: Improve changeset descriptions

[NuroDev]

These changes make some minor tweaks to the changesets added in #12267 and #12386 to both improve their detail slightly and fix a minor oversight that should have been fixed before merging.

---

• Tests
  • Tests included/updated
  • Automated tests not possible - manual testing has been completed as follows:
  • Additional testing not necessary because: Only applies to changsets
• Public documentation
  • Cloudflare docs PR(s):
  • Documentation not necessary because: Only applies to changsets

A picture of a cute animal (not mandatory, but encouraged)

---

[changeset-bot]

⚠️ No Changeset found

Latest commit: 9a796cd

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.

Click here to learn what changesets are, and how to add one.

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

[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no bugs or issues to report.

[pkg-pr-new]

create-cloudflare

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@cloudflare/kv-asset-handler

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miniflare

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@cloudflare/pages-shared

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@cloudflare/unenv-preset

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@cloudflare/vite-plugin

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@cloudflare/vitest-pool-workers

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@cloudflare/workers-editor-shared

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@cloudflare/workers-utils

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wrangler

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commit: 9a796cd