also animate logo shrink when a song is playing

src/itdelatrisu/opsu/states/MainMenu.java

@@ -265,12 +265,12 @@ public class MainMenu extends BaseOpsuState {
 		boolean renderPiece = position != null;
 		if (position == null) {
 			position = System.currentTimeMillis() % 1000 / 1000f;
+		}
 		if (position < 0.05f) {
 			position = 1f - AnimationEquation.IN_CUBIC.calc(position / 0.05f);
 		} else {
 			position = (position - 0.05f) / 0.95f;
 		}
-		}
 		logo.draw(color, 0.9726f + position * 0.0274f);
 		final float hoverScale = logo.getCurrentHoverExpandValue();
 		if (renderPiece) {