fix: font render bounds

[lumixraku]

close https://github.com/dream-num/univer-pro/issues/2809

Pull Request Checklist

• Related tickets or issues have been linked in the PR description (or missing issue).
• Naming convention is followed (do please check it especially when you created new plugins, commands and resources).
• Unit tests have been added for the changes (if applicable).
• Breaking changes have been documented (or no breaking changes introduced in this PR).

[github-actions]

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[github-actions]

Playwright test results

 16 passed
 1 flaky

Details

 17 tests across 8 suites
 4 minutes, 32 seconds
 45471fe
 For more information, see full report

Flaky tests

chromium › visual-comparison/sheets/sheets-visual-comparison.spec.ts › diff default sheet toolbar

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 22 lines in your changes missing coverage. Please review.

Project coverage is 30.96%. Comparing base (e1aeec0) to head (45471fe).
Report is 2 commits behind head on dev.

Files with missing lines	Patch %	Lines
...ne-render/src/components/sheets/extensions/font.ts	0.00%	16 Missing ⚠️
...gine-render/src/components/docs/extensions/line.ts	0.00%	6 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##              dev    #3754   +/-   ##
=======================================
  Coverage   30.96%   30.96%           
=======================================
  Files        2286     2286           
  Lines      118558   118588   +30     
  Branches    26113    26128   +15     
=======================================
+ Hits        36714    36726   +12     
- Misses      81844    81862   +18     

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