Feature request: programmatically determine sunset

[dbrodsky]

I am using this app in a state that requires a certain amount of nighttime driving, so getting accurate nighttime hours is important.

I noticed here that nighttime is hardcoded to 7:00 PM. It is currently dark in the 5 o'clock hour and will be for the next few months.

There are some algorithms to determine twilight based on time and location (which DriveLogger is granted access to). I found this one but can't vouch for its efficacy.

This ticket is to recommend using an algorithmic approach to determining nighttime. Breaking out daytime and nighttime hours in the app summary page would be great as well, but I can manually work around that by exporting the data.

Thank you for making a simple app for drive logging!