mounted() {
	window.addEventListener("scroll", this.handleScroll);
}
methods: {
    handleScroll() {
      const scrollTop =
        document.documentElement.scrollTop || document.body.scrollTop;
      const scrollHeight =
        document.documentElement.scrollHeight || document.body.scrollHeight;
      const clientHeight =
        document.documentElement.clientHeight || window.innerHeight;
      if (scrollTop + clientHeight >= scrollHeight) {
        if (this.page.current < this.page.totalPages) {
          this.page.loading = true;
          this.handleRefresh(this.page.current);
        }
      }
    },
}