fix(policy): compute desired number of matches before rooms #654
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If we first divide the number of running matches per maxMatches we might end up with a number between 0 and 1, which is quirky when using math.Ceil because it would propagate the error to when computing number of desired rooms. To simplify and fix this, instead we now compute how many matches is the desired and then convert the final number to the amount of rooms/instances/pods needed to provide this number of matches: