This change makes the team seed display in "team intro" screen as well.
TeamDisplay
TournamentMatchScoreDisplay
Intuitively show the score difference between the two teams
TeamScoreDisplay
var
CurrentMatch
With(s => ...)
Also adds test scene for MatchHeader component.
MathF-functions are faster than the Math-counterpart and it looks cleaner, so use MathF when we cast to float or int anyway.