Adjust chat input field padding

[Hailong-am]

Description

Adjust chat input field padding

Before

After

Issues Resolved

[List any issues this PR will resolve]

Check List

• New functionality includes testing.
  • All tests pass, including unit test, integration test and doctest
• New functionality has been documented.
  • New functionality has javadoc added
  • New functionality has user manual doc added
• Commits are signed per the DCO using --signoff

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (35787c6) 83.72% compared to head (30a2616) 83.72%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #80   +/-   ##
=======================================
  Coverage   83.72%   83.72%           
=======================================
  Files          43       43           
  Lines        1026     1026           
  Branches      239      239           
=======================================
  Hits          859      859           
  Misses        166      166           
  Partials        1        1           

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