fix: Fix block issue by many schedules

[re2zero]

If there are a lot of schedules(recurs), then the UI will be blocked and do any operation become very slow. The root reason is too many json string to response from Dbus.

Log: Fix block issue by many schedules.
Bug: https://pms.uniontech.com/bug-view-274791.html

[github-actions]

Note

[静态代码检查]

• 敏感词检查失败, 检测到2个文件存在敏感词

详情

{
    "calendar-common/src/lunarandfestival/lunarandfestival.h": [
        {
            "line": "static QVector<QString> DiZhi = {\"子\", \"丑\", \"寅\", \"卯\", \"辰\", \"巳\", \"午\", \"未\", \"申\", \"酉\", \"戌\", \"亥\"};",
            "line_number": 103,
            "rule": "C151",
            "reason": "政治敏感词 | 8503710310"
        }
    ],
    "calendar-common/src/lunarandfestival/method_interface.cpp": [
        {
            "line": "    return TianGan[num % 10] + DiZhi[num % 12];",
            "line_number": 78,
            "rule": "C151",
            "reason": "政治敏感词 | 8503710310"
        }
    ]
}

[myml]

这是同步的以前的补丁吗？

[myml]

改动这么多有测试过吗

[re2zero]

这是同步的以前的补丁吗？

不是以前的补丁，测了以前的版本也有同样的问题，大概率从未测这种场景。

改动这么多有测试过吗

自测了，性能功能都没问题。但有一个疑问：
DSchedule::convertSchedules 来自 DAccountModule::getScheduleTimesOn，其中原来的实现中“扩展”部分没看懂

if (extend) {
                        //需要扩展的天数
...
                        //需要扩展的天数
                    int extenddays = static_cast<int>(schedule->dtStart().daysTo(schedule->dtEnd()));

如果保留，有一定性能影响，UI的显示也很奇怪。可以cherry-pick试试。
DSchedule::expendRecurrence 来自 DAccountModule::extendRecurrence，也同样存在上述“扩展”问题。

[deepin-ci-robot]

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This pull-request has been approved by: myml, re2zero

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