feat(ui): support onFocus event in InputNumber

[yuhongz]

close #xxx

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).

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Playwright test results

 19 passed

Details

 19 tests across 9 suites
 4 minutes, 39 seconds
 cc7db3b
 For more information, see full report

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 33.04%. Comparing base (54599ce) to head (cc7db3b).
Report is 44 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #4085      +/-   ##
==========================================
+ Coverage   32.86%   33.04%   +0.18%     
==========================================
  Files        2501     2437      -64     
  Lines      126591   126821     +230     
  Branches    28351    28393      +42     
==========================================
+ Hits        41598    41912     +314     
+ Misses      84993    84909      -84     

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