feat(comp:tabs): add less variable

[danranVm]

fix #768

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What kind of change does this PR introduce?

• Bugfix
• Feature
• Component style update
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
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[codecov]

Codecov Report

Merging #777 (c3a9deb) into main (934c0b2) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #777   +/-   ##
=======================================
  Coverage   83.89%   83.89%           
=======================================
  Files         465      465           
  Lines       12033    12033           
  Branches     2886     2886           
=======================================
  Hits        10095    10095           
  Misses       1938     1938           

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