Closes https://github.com/gotenberg/gotenberg/issues/1460
It can be easier to print a "clean" PDF of some pages if you emulate
media features like `prefers-reduced-motion`. Add support for that
emulation.
* Add `waitForSelector` option to Chromium conversions
Closes#960
As an alternative to waiting on an expression, this allows users to wait
for a specific node matching a selector to become visible in the HTML /
at the remote URL before converting to PDF.
* Fix style / prettify
