fix: The application name on the dde-desktop cannot be renamed

[liyigang1]

Desktop files on the desktop are hard linked and can be renamed based on whether the file is writable

Log: The application name on the dde-desktop cannot be renamed
Bug: https://pms.uniontech.com/bug-view-256967.html

[Johnson-zs]

abled？

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• 在DesktopFileInfo::canAttributes函数中新增的代码块可能会导致ProxyFileInfo::canAttributes的调用被覆盖，应该检查ProxyFileInfo::canAttributes的返回值。
• FileOperatorMenuScene::initialize函数中的条件判断逻辑可能存在逻辑错误，应该先判断d->focusFileInfo是否为空，再进行其他操作。
• CanvasMenuScenePrivate::filterDisableAction函数中的renameEnabled变量应该声明为bool类型，而不是true。
• WorkspaceMenuScene::updateState函数中的条件判断逻辑可能存在逻辑错误，应该先判断d->focusFileInfo是否为空，再进行其他操作。

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: Johnson-zs, liyigang1

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[Johnson-zs]

/forcemerge

[deepin-bot]

This pr force merged! (status: behind)