Change the divisor for total consumption output (#14215)

According to my observations, the "switch_energy" value displayed by Pyfritzhome is the sum of Wh over the last week since measurement.
As a result, the correct divisor for representing output as kWh would be 1000 instead of 10000.

homeassistant/components/switch/fritzbox.py

@@ -87,7 +87,7 @@ class FritzboxSwitch(SwitchDevice):
 
         if self._device.has_powermeter:
             attrs[ATTR_TOTAL_CONSUMPTION] = "{:.3f}".format(
-                (self._device.energy or 0.0) / 100000)
+                (self._device.energy or 0.0) / 1000)
             attrs[ATTR_TOTAL_CONSUMPTION_UNIT] = \
                 ATTR_TOTAL_CONSUMPTION_UNIT_VALUE
         if self._device.has_temperature_sensor: