Countdown Timer

A Simple Countdown Timer with a simple interface and easy operation - A time management tool that supports custom Countdown Timer options - Offers 2 styles: dark and light mode, with functions to pause, cancel, and repeat the Countdown Timer - A Countdown Timer with timed reminders to prevent missing time, enhancing work and study efficiency - During the Countdown, the Countdown Timer information (e.g., `5m`, `<1m`) will be displayed on the toolbar icon