Remove number of deaths from UI (and maybe add food eaten?)

[Debilski]

Having both kills and deaths feels superfluous to me (it was introduced in f4ec259) and removing it would make the status info smaller.

OTOH, we could add the number of pellets eaten by a team (though maybe in a second step: this needs a backend attribute). And to save space, the names could become small icons (maybe hard to make it look right).