Function init

* 初始化 * @param data

(data: {
      config: Required<PopsPanelConfig>;
      $el: {
        $pops: HTMLElement;
        $content: HTMLElement;
        $panelRightSectionWrapper: HTMLElement;
        $panelLeftAside: HTMLElement;
        $panelContentSectionContainer: HTMLElement;
        $panelBottomWrapper: HTMLElement;
        $panelBottomContainer: HTMLElement;
        $panelBottomLeftContainer: HTMLElement;
        $panelBottomRightContainer: HTMLElement;
      };
      emitter: EventEmiter<PopsPanelEventType>;
    })