Update charge_template.py - optional expects remaining time untill plan target#2936

LKuemmel merged 3 commits intoopenWB:masteropenWB/core:masterfrom

tpd-opitz:fix-time-slot-selection-ends-too-earlytpd-opitz/openwb-core:fix-time-slot-selection-ends-too-earlyCopy head branch name to clipboard