Set initialTab based on current date.

[oldergod]

fixes #95

[martinbonnin]

Time is hard 😅 . Do we really need to go through timezones here since will have epochMillis everywhere? Maybe something like:

private fun List<DaySchedule>.todayPageIndex(): Int{
    val todayPageIndex = indexOfLast { (dayInMillis, _, _) ->
        System.currentTimeMillis() >= dayInMillis
    }
    return if (todayPageIndex < 0) 0 else todayPageIndex
}

?

[oldergod]

fixed

[martinbonnin]

Super nit: I kind of like ultra long descriptive names for those like dayStartEpochMilli.
Actually, I'd like to rename a lot of the time, timestamp we have to fooEpochMilli. That would make it more explicit what the reference point and unit is.
But dayInMillis works too so feel free to ignore my time ramblings!

[oldergod]

fixed

[martinbonnin]

Thanks 💚 !