feat: Paste file event report

[liyigang1]

Add dbus call, add group policy, and execute dbus call after copying and cutting ends

Log: Paste file event report
Task: https://pms.uniontech.com/task-view-359667.html

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• 在boardCastPastData函数中，应该检查fileMonitor.isValid()以确保fileMonitor对象是有效的，然后再调用asyncCallWithArgumentList方法。
• boardCastPastData函数中的data变量应该使用QVariant的QVariant::fromValue方法来构造，而不是直接使用append方法。
• boardCastPastData函数中的fileNames变量应该使用QStringList的join方法来构造字符串，而不是直接连接。
• canBroadcastPaste函数中，应该检查DConfigManager::instance()->value的返回值是否是有效的，然后再进行类型转换。
• canBroadcastPaste函数的命名应该更清晰地表达其功能，例如canBroadcastPasteEvent。

是否建议立即修改:
是

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: liyigang1, max-lvs

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