docs(write-your-first-test): change toml extension to json

[kotkoroid]

Summary

The write-your-first-test page currently references TOML Wrangler configuration. This pull request addresses that issue by updating the content to reflect the growing preference for the JSONC format.

[hyperlint-ai]

Howdy and thanks for contributing to our repo. The Cloudflare team reviews new, external PRs within two (2) weeks. If it's been two weeks or longer without any movement, please tag the PR Assignees in a comment.

We review internal PRs within 1 week. If it's something urgent or has been sitting without a comment, start a thread in the Developer Docs space internally.

---

PR Change Summary

Updated the configuration format in the write-your-first-test documentation to reflect the preference for JSONC over TOML.

• Changed configuration file reference from TOML to JSONC format
• Updated examples to use the new JSONC configuration path

Modified Files

• src/content/docs/workers/testing/vitest-integration/write-your-first-test.mdx

---

How can I customize these reviews?

Check out the Hyperlint AI Reviewer docs for more information on how to customize the review.

If you just want to ignore it on this PR, you can add the hyperlint-ignore label to the PR. Future changes won't trigger a Hyperlint review.

Note specifically for link checks, we only check the first 30 links in a file and we cache the results for several hours (for instance, if you just added a page, you might experience this). Our recommendation is to add hyperlint-ignore to the PR to ignore the link check for this PR.