Remove EnvelopesQuery, use hooks over props for app components

[davidjgoss]

🤔 What's changed?

This PR makes some changes to the library to simplify things for consuming apps, and simplify some internals too.

• With our dependencies updated, we can now remove the EnvelopesQuery class since recent additions to @cucumber/query give us what we need for those use cases. A couple of other helpers are also defunct and duly removed for the same reason.
• Previously it was more difficult than it needed to be to compose our "app" components (<StatusesSummary/>, <ExecutionSummary/>, <SearchBar/>) together to make the kind of report you want - it required a lot of orchestration and understanding to pass the required props to each component and interact with the right bits of context. Now those components are prop-free, using hooks internally to get and set the state they need, and the FilteredResults component is now an exercise in straightforward composition. This isn't the trade off we'd always make for e.g. a general purpose component library, but here it makes sense to bake in the assumption that you're working within an <EnvelopesWrapper/> context and reap the DX benefits.

Since many of the changed components were exported, this is a breaking change.

🏷️ What kind of change is this?

• 🏦 Refactoring/debt/DX (improvement to code design, tooling, etc. without changing behaviour)
• 💥 Breaking change (incompatible changes to the API)

📋 Checklist:

• I agree to respect and uphold the Cucumber Community Code of Conduct
• I've changed the behaviour of the code
  • I have added/updated tests to cover my changes.
• My change requires a change to the documentation.
  • I have updated the documentation accordingly.
• Users should know about my change
  • I have added an entry to the "Unreleased" section of the CHANGELOG, linking to this pull request.

---

This text was originally generated from a template, then edited by hand. You can modify the template here.

[netlify]

✅ Deploy Preview for cucumber-react-preview ready!

Name	Link
🔨 Latest commit	8dbecdc
🔍 Latest deploy log	https://app.netlify.com/sites/cucumber-react-preview/deploys/67f0fd4cf35a550008b82f2a
😎 Deploy Preview	https://deploy-preview-374--cucumber-react-preview.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[Copilot]

Copilot reviewed 34 out of 35 changed files in this pull request and generated no comments.

Files not reviewed (1)

• package.json: Language not supported

Comments suppressed due to low confidence (3)

src/components/gherkin/MDG.spec.tsx:29

• Since EnvelopesQuery has been removed, verify that tests and logic relying on its updates are fully updated to work without envelope state propagation.

for (const envelope of envelopes) { ... envelopesQuery.update(envelope) }

src/components/app/SearchBar.spec.tsx:163

• [nitpick] The checkbox label 'undefined' may be unclear; please verify if this status label is intentional or if a more descriptive name should be used.

await userEvent.click(getByRole('checkbox', { name: 'undefined' }))

src/components/app/ExecutionSummary.tsx:26

• [nitpick] Consider incorporating the 'passed' label directly within the formatPassRate function to centralize the formatting logic.

formatPassRate(scenarioCountByStatus[TestStepResultStatus.PASSED], totalScenarioCount) + ' passed'