[Enhancement]: Ability to use only a selected browser to reduce install duration

[mxschmitt]

Currently we need the full playwright package in order to use jest-playwright. It would be awesome, if we could use only a specific browser or two which would reduce the install duration.

They already provide these packages in:

• plawright-chromium
• playwright-webkit
• playwright-firefox

(ref: https://github.com/microsoft/playwright/tree/master/packages)

Instead of:

const playwright = require("playwright")
playwright["chromium"]...

it would be:

const chromium = require("playwright-chromium")
chromium...