The alarm for deadlines is now handled via a background task. Instead of a scheduled task that prevents sleep mode, the face checks in the background every minute whether an deadline is due. If this is the case, the face wakes up from sleep mode and starts a scheduled task for the remaining seconds.
- A background task is only scheduled if the alarm option is activated. If the option is enabled, an alarm sounds when the next deadline is reached. If the option is disabled, no alarm sounds and the watch can enter low energy sleep.
- Fixed tick frequency error. During running mode, the clock ticks at 1Hz. This is set in the init function `_running_init` and thus ensures that we do not run too fast when returning from the setting mode.
- Minor corrections to comments and indentations.
You can enter and monitor up to four different deadlines by providing their respective date and time. The watch face displays the remaining time at matching granularity, ranging from years to seconds.
