fix: Open generated spec file preview by default

[davidmunechika]

• Closes UNIFY-1456

User facing changelog

Expand generated spec file code block by default.

Additional details

Before, it wasn't obvious you could preview the generated spec file:

Open by default:

PR Tasks

• Have tests been added/updated?
• Has the original issue (or this PR, if no issue exists) been tagged with a release in ZenHub? (user-facing changes only)
• [n/a] Has a PR for user-facing changes been opened in cypress-documentation?
• [n/a] Have API changes been updated in the type definitions?
• [n/a] Have new configuration options been added to the cypress.schema.json?

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[cypress]

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Test summary

4347 • 0 • 48 • 0 • 0

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Run details

Project	cypress
Status	Passed
Commit	3410087
Started	Apr 29, 2022 2:02 PM
Ended	Apr 29, 2022 2:16 PM
Duration	13:48 💡
OS	Linux Debian - 10.10
Browser	Electron 94

View run in Cypress Dashboard ➡️

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