update project-SelectScanner modal Default field css

[ShengqiWang]

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Comprehensive Summary of your change

Issue being fixed

Fixes #19646

Please indicate you've done the following:

• Well Written Title and Summary of the PR
• Label the PR as needed. "release-note/ignore-for-release, release-note/new-feature, release-note/update, release-note/enhancement, release-note/community, release-note/breaking-change, release-note/docs, release-note/infra, release-note/deprecation"
• Accepted the DCO. Commits without the DCO will delay acceptance.
• Made sure tests are passing and test coverage is added if needed.
• Considered the docs impact and opened a new docs issue or PR with docs changes if needed in website repository.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (0d157f2) 67.54% compared to head (38c80b3) 67.55%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #19753      +/-   ##
==========================================
+ Coverage   67.54%   67.55%   +0.01%     
==========================================
  Files         991      991              
  Lines      109165   109165              
  Branches     2719     2719              
==========================================
+ Hits        73734    73747      +13     
+ Misses      31462    31454       -8     
+ Partials     3969     3964       -5     

Flag	Coverage Δ
unittests	67.55% <ø> (+0.01%)	⬆️

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see 5 files with indirect coverage changes

[xuelichao]

Looks good to me.

[wy65701436]

lgtm