fix(nextjs): use next/jest.js for Jest configuration to support modern JSX transform #31705
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This PR fixes and issue with Next.js + Jest to remove warnings about outdated transforms.
Changes Made
Current Behavior
When using React 19 with Next.js applications in Nx, developers receive a warning about outdated JSX transform because the Jest configuration uses
manual babel-jest setup instead of Next.js's recommended approach.
Expected Behavior
Next.js applications and libraries generated by Nx should use next/jest.js configuration which automatically handles the modern JSX transform
(runtime: 'automatic') and provides proper Jest setup for Next.js projects without warnings.
Related Issue(s)
Fixes #27900