Updated javadocs of Player.setPlayerListName to reflect that the char limit is based on length without colours

By: Nathan Adams <dinnerbone@dinnerbone.com>

paper-api/src/main/java/org/bukkit/entity/Player.java

@@ -50,6 +50,7 @@ public interface Player extends HumanEntity, CommandSender, OfflinePlayer, Plugi
      * Sets the name that is shown on the in-game player list.
      * <p>
      * The name cannot be longer than 16 characters, but {@link ChatColor} is supported.
+     * Colors do not count towards the length limitation.
      * <p>
      * If the value is null, the name will be identical to {@link #getName()}.
      * <p>