- Moved aiFeatures.ftl, aiWindow.ftl, and aiWindowContent.ftl from locales-preview/ to locales/en-US/browser/ - Added -smart-window-brand-name as a shared Fluent brand term and replaced hardcoded "Smart Window" strings. Supports singular/plural via $plural-form Differential Revision: https://phabricator.services.mozilla.com/D306879