fix(tabs): add icon only 1px spacing

[alisonjoseph]

Closes #17605

Changelog

• add 1px space between icon only tabs

Testing / Reviewing

Check icon only tabs, should be 1px space between

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.13%. Comparing base (21e4380) to head (2ffd466).
Report is 20 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #17671   +/-   ##
=======================================
  Coverage   77.13%   77.13%           
=======================================
  Files         409      409           
  Lines       14024    14024           
  Branches     4355     4327   -28     
=======================================
  Hits        10818    10818           
  Misses       3035     3035           
  Partials      171      171           

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[emyarod]

looks good to me!