fix: Modifying configuration errors can also set proxy issues

[caixr23]

When configuring incorrectly, setting the proxy did not take effect, resulting in asynchronous network proxy status on the taskbar

Issue: linuxdeepin/developer-center#9983

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• 在SysProxyModule::SysProxyModule构造函数中，新增的checkConf()函数调用可能需要检查m_proxyTypeBox和m_buttonTuple是否为空，以避免潜在的空指针异常。
• 在SysProxyModule::checkConf函数中，应该检查m_proxyTypeBox->comboBox()->currentIndex()是否为有效的索引，以避免潜在的数组越界访问。
• 在SysProxyModule::eventFilter函数中，应该添加对event->type() == QEvent::FocusIn的判断，以避免在编辑框获得焦点时重复调用checkConf()。
• 在SysProxyModule::resetData函数中，应该添加对uiMethodChanged的调用，以便在设置代理方法时更新界面。
• 在SysProxyModule::deactive函数中，新增的QTimer::singleShot调用应该传递一个lambda函数，而不是直接传递一个匿名函数，以避免潜在的内存泄漏。

是否建议立即修改:
是

[github-actions]

TAG Bot

TAG: 2.0.31
EXISTED: no
DISTRIBUTION: unstable

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: caixr23, yixinshark

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[yixinshark]

/topic shell-testing-20240724

[deepin-ci-robot]

Add topic: shell-testing-20240724 successed.

[yixinshark]

/integr-topic shell-testing-20240724

[deepin-ci-robot]

Integrated with pr deepin-community/Repository-Integration#1788

[caixr23]

/forcemerge

[deepin-bot]

This pr force merged! (status: unstable)