Treatments in stats table -> allow 1h, 2h, 3h (currently smallest is 1d)

[loopy321]

I sometimes do multiple carb treatment entries and it would be useful to quickly see a sum for a shorter timeframe (i.e. 1-2h to see since a bolus). Also, a indication in the table of the timeframe would be helpful (i.e. "Carbs (1h) | Bolus (1h) | ...").

Thanks!!