Method separator

src/ui/components/Display.ts:151–154

* 分隔线

(length: number = 50, double: boolean = false)

   * 分隔线
   */
  public static separator(length: number = 50, double: boolean = false): void {
    const line = double ? UIStyles.border.doubleLine(length) : UIStyles.border.line(length);
    this.output(line);
  }

  /**
   * 空行