feat(playwright): support HAR recording

[kobenguyent]

Motivation/Description of the PR

• Resolves [Feature] - HAR recording with Playwright #3985

A HAR file is an HTTP Archive file that contains a record of all the network requests that are made when a page is loaded. It contains information about the request and response headers, cookies, content, timings, and more. You can use HAR files to mock network requests in your tests. HAR will be saved to output/har. More info could be found here https://playwright.dev/docs/api/class-browser#browser-new-context-option-record-har.

...
recordHar: {
    mode: 'minimal', // possible values: 'minimal'|'full'.
    content: 'embed' // possible values:  "omit"|"embed"|"attach".
}
...

Applicable helpers:

• Playwright

Type of change

• 🚀 New functionality

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)