Use language from config instead of system language

This fixes an issue where the weekday would be named according to the system language, but not the specified language in that module's settings.

inkycal/modules/inkycal_weather.py

@@ -107,7 +107,7 @@ class Weather(inkycal_module):
     # additional configuration
     self.owm = OWM(self.api_key).weather_manager()
     self.timezone = get_system_tz()
-    self.locale = sys_locale()[0]
+    self.locale = config['language']
     self.weatherfont = ImageFont.truetype(
       fonts['weathericons-regular-webfont'], size = self.fontsize)
 
@@ -417,7 +417,9 @@ class Weather(inkycal_module):
       logger.debug((key,val))
 
     # Get some current weather details
-    temperature = '{}°'.format(weather.temperature(unit=temp_unit)['temp'])
+    temperature = '{}°'.format(round(
+      weather.temperature(unit=temp_unit)['temp'], ndigits=dec_temp))
+
     weather_icon = weather.weather_icon_name
     humidity = str(weather.humidity)
     sunrise_raw = arrow.get(weather.sunrise_time()).to(self.timezone)