[feature] components generate /playwright/index.[tj]sx instead of /playwright/index.[tj]s

[sand4rt]

Can Playwright generate /playwright/index.[tj]sx instead of /playwright/index.[tj]s for the following tsx frameworks?:

• Solid
• React

I think this would be better because tsx can be returned since: https://github.com/microsoft/playwright/pull/18616/files#diff-aa90f1a2f6a8431f5441420bd16c0f0dff360678ffdbee761455e36f15aa0139R14
microsoft/playwright#18616

Please note that if this changes, the documentation will need to be updated as well:
https://playwright.dev/docs/test-components#step-1-install-playwright-test-for-components-for-your-respective-framework