fix(dev-cli): Fix monorepo root detection for installed package case

[brkalow]

Description

Rely on the dev CLI configuration to get the clerk/javascript monorepo root, instead of assuming the dev-cli is being executed from within the monorepo.

Checklist

• npm test runs as expected.
• npm run build runs as expected.
• (If applicable) JSDoc comments have been added or updated for any package exports
• (If applicable) Documentation has been updated

Type of change

• 🐛 Bug fix
• 🌟 New feature
• 🔨 Breaking change
• 📖 Refactoring / dependency upgrade / documentation
• other:

[changeset-bot]

⚠️ No Changeset found

Latest commit: aa64eb6

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[brkalow]

Closing in favor of #3856