chore(e2e): update playwright config 🔨

[Bad3r]

This PR updates the playwright tests config.

Changelog:

• Add some documentation
• Use GitHub reporter for the CI and the default list reporter locally
  • for GitHub Actions CI to generate annotations, plus a concise 'dot'.
• Add a failsafe
  • Fail if test.only() is specified in the CI

[andelf]

It's always better to fail early than to waste time retrying when tests fail. This is especially important because when e2e tests fail, the editor state can become unpredictable. Therefore, it's best to catch and address the issue at the earliest possible stage to avoid any unnecessary complications.

[Bad3r]

@andelf that's a fair point. The optimal scenario is that tests should be completely independent of each other; in that case, retrying the test won't be an issue since the app state is independent between each test.

I do agree that It's best to address the flakiness in code instead of depending on the retries, though. I will remove it.

[Bad3r]

@andelf the other changes aren't major. Please feel free to merge or close.