2021.9.0: More energy, USB discovery, template ❤️

[Mincka]

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Transfer gas volume to energy in kWh

Gas is working fine but there are 2 improvement axis: 1: we are not charged from the m3 but from the number of kWh. It should be more logical to enter cost as Euros/kWh 2: gaz energy is not added to electricity energy. It should be logical to add both the values Phil

Both options were originally proposed in the mockups, choice is always better.