el-calendar禁用灰色区域的点击事件

由于自定义表格的点击事件，日期页面跳转出现bug，直接禁用灰色区域跳转，只使用三个按钮跳转月份：
禁用灰色区域的css：

/*calendar_class 是el-calendar所在父标签的css*/
 .calendar_class >>>.el-calendar-table:not(.is-range)
    td.next{
      pointer-events: none;
    }
  .calendar_class >>>.el-calendar-table:not(.is-range)
    td.prev{
      pointer-events: none;
    }

今天，上个月，下个月点击事件：

created(){
      this.$nextTick(() => {
        // 点击前一个月
        let prevBtn = document.querySelector(
          ".el-calendar__button-group .el-button-group>button:nth-child(1)"
        );
        prevBtn.addEventListener("click", e => {
          this.modelMonth = this.$moment(this.modelMonth).format('YYYY-MM')
           this.fetchData()
        })
        //点击今天
        let todayBtn = document.querySelector(
          ".el-calendar__button-group .el-button-group>button:nth-child(2)"
        );
        todayBtn.addEventListener("click", () => {
          this.modelMonth = this.$moment(this.modelMonth).format('YYYY-MM')
          this.fetchData()
        })
        //点击下一个月
        let nextBtn = document.querySelector(
          ".el-calendar__button-group .el-button-group>button:nth-child(3)"
        );
        nextBtn.addEventListener("click", e => {
          this.modelMonth = this.$moment(this.modelMonth).format('YYYY-MM')
          this.fetchData()
        })
      });

    },