fix(docs-ui): cursor valished at paragraph beginning

[Jocs]

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).

[github-actions]

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[github-actions]

Playwright test results

 20 passed

Details

 20 tests across 9 suites
 4 minutes, 55 seconds
 dd9bfbb
 For more information, see full report

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 33.73%. Comparing base (d1d4bbe) to head (dd9bfbb).
Report is 1 commits behind head on dev.

Files with missing lines	Patch %	Lines
.../docs-ui/src/services/selection/selection-utils.ts	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #4147      +/-   ##
==========================================
- Coverage   33.73%   33.73%   -0.01%     
==========================================
  Files        2457     2457              
  Lines      127891   127893       +2     
  Branches    28638    28638              
==========================================
  Hits        43141    43141              
- Misses      84750    84752       +2     

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