fix: [scale] Adjust the default zoom mode to 'FitToPageWidthMode'.

[GongHeng2017]

-- Adjust the default zoom mode to ​​"FitToPageWidthMode"​​.

Log: fix issue
Bug: https://pms.uniontech.com/bug-view-322581.html

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• Dr::ScaleMode 枚举值从 Dr::FitToPageWorHMode 更改为 Dr::FitToPageWidthMode，需要确认这是否符合预期的行为变更。

是否建议立即修改:

• 是，如果这个更改没有经过充分的测试和讨论，可能会导致界面显示不正确或者用户行为不符合预期。需要确保这个更改是经过充分测试的，并且与用户的需求和预期一致。

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: GongHeng2017, liyigang1, max-lvs

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[GongHeng2017]

/merge

[deepin-bot]

This pr cannot be merged! (status: unstable)

[GongHeng2017]

/forcemerge

[deepin-bot]

This pr force merged! (status: unstable)