One-time sends, auto multi-channel content, and template usage insights

One-Time Send is a feature that streamlines the process of manually sending one-off notifications using Courier's UI, supporting various channels and personalization through variables. It also offers scheduling capabilities, making it ideal for urgent updates or announcements. Additionally, auto multi-channel content generation simplifies content creation across multiple channels by leveraging existing content from other channels. Furthermore, notification template "last sent" field displays timestamps on the templates list page, providing a clearer picture of template usage. Quality-of-life enhancements have also been made to improve user experience.