Introduce playwright for End-To-End testing

[janivo]

Description

The current E2E testing setup in Stencil relies on its own testing framework, which lacks transparency for debugging purposes and utilizes Puppeteer, known for its slower performance. This task proposes introducing Playwright, a state-of-the-art E2E testing tool renowned for its speed, flexibility, and support for both headless and headed modes. The migration also involves setting up a separate application, potentially using Storybook, to display and test our components.

Acceptance Criteria

• Playwright is successfully integrated for End-To-End testing in the project.
• Playwright configurations for both headless and headed modes are established.
• A separate application, possibly using Storybook, is set up for displaying and testing components with Playwright.