Fixes day/night detection and an indentation bug

[pehses]

Day/night detection is used in sensor.yaml to select the appropriate weather icon (e.g. 'sunny' vs 'night'). The previous if condition did not work for the weather_condition_x states, when the _now state was in a different part of the day/night cycle. This commit should fix this issue, as long as weather_condition_x is not too far in the future (not more than one day or night phase).

Additional bug fix:

• fix an indentation bug in weatherman.yaml

[Madelena]

Thank you for the fixes @pehses 😊