Calculate correct number of rounds

src/app/components/tournament-manage/tournament-manage.component.ts

@@ -349,7 +349,7 @@ export class TournamentManageComponent implements OnInit {
     let count = 0;
     for (let group of event.groups) {
       let numTeams = group.teams.length;
-      let rounds = Math.trunc(Math.log2(numTeams));
+      let rounds = numTeams <= 4 ? 3 : 4;
       let matchesPerRound = Math.trunc(numTeams / 2);
       count += (rounds * matchesPerRound);
     }