fix: make "New Spec File" a button link style

[brian-mann]

User facing changelog

• Changed style of "New Spec File" to be a link style instead of a primary button

How has the user experience changed?

The previous style was way too aggressive to be a primary button, and distracted from the already existing primary button (which was the browser dropdown).

PR Tasks

• Have tests been added/updated?
• Has the original issue or this PR been tagged with a release in ZenHub?
• Has a PR for user-facing changes been opened in cypress-documentation?
• Have API changes been updated in the type definitions?
• Have new configuration options been added to the cypress.schema.json?

[cypress-bot]

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[cypress]

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Test summary

4020 • 0 • 49 • 2 • 0

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Run details

Project	cypress
Status	Passed
Commit	41b4611
Started	Apr 7, 2021 2:10 AM
Ended	Apr 7, 2021 2:21 AM
Duration	10:15 💡
OS	Linux Debian - 10.8
Browser	Chrome 89

View run in Cypress Dashboard ➡️

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[cypress-bot]

Released in 7.0.1.

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