fix: animation issue

[Lighto-Ku]

enter dir issue of 3-party plugin.

Log: fix animation issue

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• 在WorkspaceWidget::setCurrentUrl函数中，对contentWidget的访问应该在curView不为空的前提下进行，以避免潜在的空指针异常。
• WorkspaceWidget::handleViewStateChanged函数中，对contentWidget的访问同样应该在view不为空的前提下进行。
• WorkspaceWidget::onAnimDelayTimeout函数中，对contentWidget的访问应该在view不为空的前提下进行。
• 新增的文件后缀.dci应该有相应的文件处理逻辑或者文档说明其用途。
• 检查EnterDirAnimationWidget的实现，确保在contentWidget为空时能够正确处理动画逻辑。

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, Lighto-Ku

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