fix: use scale factor to zoom mobile(#7201)

[asjqkkkk]

Fix the issue #7201

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• [x] My code adheres to AppFlowy's Conventions
• [x] I've listed at least one issue that this PR fixes in the description above.
• [x] I've added a test(s) to validate changes in this PR, or this PR only contains semantic changes.
• [ ] All existing tests are passing.