[Feature request] Longer Before/After Offset Window

[necopinus]

Currently, Suntimes Alarms allows a maximum offset of 12 h 55 m from an event. There are times when a longer window is necessary, however.

For example, let's say I want to set my alarm for dawn and get a solid 8 hours of sleep. To do this, I want to remind myself to stop drinking caffeine 6 hours before I got to bed. But this means that I need to set a reminder for at least 14 hours before dawn, which Suntimes can't currently handle.

Extending the before/after offset window to 23 h 55 m should cover cases like this.