fix(comp:checkbox): style error when disabled

[liuzaijiang]

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[codecov]

Codecov Report

Merging #1344 (3ec14c3) into main (6eeffb8) will not change coverage.
The diff coverage is n/a.

❗ Current head 3ec14c3 differs from pull request most recent head 8779be4. Consider uploading reports for the commit 8779be4 to get more accurate results

@@           Coverage Diff           @@
##             main    #1344   +/-   ##
=======================================
  Coverage   93.09%   93.09%           
=======================================
  Files         323      323           
  Lines       29912    29912           
  Branches     3394     3394           
=======================================
  Hits        27848    27848           
  Misses       2064     2064           

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