[Feature] push calorie tolerance upwards when selecting 'gain weight'

[mibombo243]

When setting the calorie goal to 'gain weight', give only little tolerance below the calorie goal and a lot of tolerance above the calorie goal until the day is marked with a red dot. If u are trying to gain weight and eat only 2/3 of your calories, the day still coumts but if you eat a little too much (you want to gain weight) it counts as failed