Feature: adopt Playwright HTML reporter to BDD tests

[vitalets]

The problem Although Playwright-bdd now supports Cucumber HTML report, it can be useful to adopt Playwright HTML reporter for BDD tests. The benefits of Playwright HTML reporter:

1. it embeds Playwright trace viewer
2. it can attach assets by url
3. it shows annotations

A solution Extend Playwright HTML reporter with the following features:

• better show background steps
• better show scenario outline examples (see #67)
• hide unnecessary fixtures