This depends on the vendoring in bug D240919. With that vendor, it's very easy
for consumers like desktop to implement support for Suggest in new countries,
locales, device form factors, etc. All we need to do is pass an appropriate
client app context (also known as a remote settings context) that contains the
client's region, form factor, locale, etc. The Rust component handles everything
after that.
Depends on D240919
Differential Revision: https://phabricator.services.mozilla.com/D241128