chore(docs): fix some formatting in Playwright.md

[elbotho]

Motivation/Description of the PR

• replace wrong code example for `resizeWindow
• Fixes some code rendering and makes it a bit more readable

Type of change

• 🔥 Breaking changes
• 🚀 New functionality
• 🐛 Bug fix
• 📋 Documentation changes/updates
• ♨️ Hot fix
• 🔨 Markdown files fix - not related to source code
• 💅 Polish code

Checklist:

• Tests have been added
• Documentation has been added (Run npm run docs)
• Lint checking (Run npm run lint)
• Local tests are passed (Run npm test)

[kobenguyent]

hey @elbotho thanks for your contribution!

So just let you know the documentation fixes would be not as simple as we see.

sometimes you need to visit https://github.com/codeceptjs/CodeceptJS/tree/3.x/docs and find the relevant changes there, sometimes the changes are at JSDocs of helper itself.

After making changes, you shall need to run npm run docs to make the docs sync everywhere.

[elbotho]

@kobenguyent thank you for the feedback.
Then it seems to be a problem with the import happening at {{> resizeWindow }} or inside of runok.js (the rest of the jsdoc comment just get's appended) and I'm sorry but I could not figure that out in a reasonable time.