fix: 解决wayland下，DDialog窗口透明问题的问题

[cjqkl]

wayland下，当进程设置DGuiApplicationHelper::ColorCompositing后，DDialog需要 主动设置模糊窗口效果

Log:
Bug: https://pms.uniontech.com/bug-view-249975.html
Influence: wayland下，DDialog窗口模糊

[deepin-ci-robot]

Hi @cjqkl. Thanks for your PR. 😃

[deepin-ci-robot]

Hi @cjqkl. Thanks for your PR.

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[kegechen]

changid在github提交代码是不需要的。可以删除项目目录下的 .git/hook/commit-msg 脚本

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: cjqkl

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