fix: change the default compressLevel

[add-uos]

change the default compressLevel to store

Log: change the default compressLevel
Bug: https://pms.uniontech.com/bug-view-270031.html

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• m_pCompressLevelCmb->setCurrentIndex(0); 可能会导致默认压缩级别被设置为最低级别，需要确认这是否是预期的行为。
• listCompressLevel 列表中可能缺少 0 索引的项，如果 setCurrentIndex(0) 是期望的默认行为，则需要确保 0 索引处有相应的条目。

是否建议立即修改:

• 是，需要确认 setCurrentIndex(0) 的行为是否符合预期，并确保 listCompressLevel 中包含 0 索引的项。

[deepin-ci-robot]

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This pull-request has been approved by: add-uos, max-lvs

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[add-uos]

/merge