fixed tetris game tick delay too low at high levels

src/main/java/eu/mhsl/minenet/minigames/instance/game/stateless/types/tetris/game/TetrisGame.java

@@ -92,7 +92,7 @@ public class TetrisGame {
             int standardTickDelay = 40;
             if(this.isFast) standardTickDelay = 20;
 
-            TaskSchedule nextTick = TaskSchedule.tick(Math.round((float) standardTickDelay / this.level));
+            TaskSchedule nextTick = TaskSchedule.tick(Math.max(Math.round((float) standardTickDelay / this.level), 1));
             if(this.paused) return nextTick;
             this.tick();
             return nextTick;