This PR updates the docs regarding configuring puppeteer. In addition,
some changes have been made to the documentation generator to show
default values on the documentation site.
Also fixes: https://github.com/puppeteer/puppeteer/pull/9144
This PR removes the deprecated query selector API from the `puppeteer`
instance. Direct imports of the query selector API have also been
deprecated and users are now expected to use the static methods defined
on `Puppeteer`.
