fix: [desktop] the view setting dialog lost focus

[itsXuSt]

as title.

Log: as title.

Bug: https://pms.uniontech.com/bug-view-271953.html

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• 在代码注释中提到了“ requiring widget to be visible when layout calculates sizehint.”，但实际代码中移除了这行设置，可能会影响布局计算。
• 注释中提到的“ Commenting this line seems to have no effect”可能需要更详细的解释，或者提供更多的上下文来理解为什么这一行注释没有效果。

是否建议立即修改:

• 是，需要确认移除wid->setVisible(true);这行代码是否会影响布局计算，如果移除是有意为之，则需要确保这一改动不会对程序功能产生负面影响。
• 是，如果注释中的“ Commenting this line seems to have no effect”是正确的，那么应该提供更多的信息来解释为什么这一行代码没有效果，或者撤销这一行注释，以保持代码的完整性。

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: itsXuSt, Johnson-zs

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