9af0a4ef3d
In bug 1941961, Nimbus initialization moved from Normandy into ExperimentAPI. This updates BackgroundTaskUtils to call into the same API as the rest of the browser to initialize Nimbus. To support this, `ExperimentAPI.init()` now supports options for providing additional context to the ExperimentManager's targeting context and forcing a sync in the RemoteSettingsExperimentLoader. Differential Revision: https://phabricator.services.mozilla.com/D242800