tech: introduce jest with nextjs

[p4dd9]

https://nextjs.org/docs/testing#jest-and-react-testing-library use next/jest

Requirements:

• [ ] uses next/jest
• [ ] provides a test execution script (package.json)
• [ ] provides a test coverage execution script (package.json) --> includes all components in src dir (for now)
• [ ] mocks providers accordingly (renderWithProviders)
• [ ] provide 1 unit test
• [ ] uses typescript
• [ ] use mocks/stubs for media types .. images, fonts
• [ ] provides 1 snapshot test
• [ ] factory pattern approach utils would be nice (can be done in a separate pr) --> with faker package to generate dummy data for components to test