perf(TextEllipsis): reuse windowWidth to avoid repeat calculations

[inottn]

1. Recalculation is only needed when the window width changes.
2. By reusing the windowWidth variable, we can avoid registering event listeners multiple times.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3410b1c) 89.89% compared to head (5f59a60) 89.87%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #12471      +/-   ##
==========================================
- Coverage   89.89%   89.87%   -0.02%     
==========================================
  Files         257      257              
  Lines        6798     6798              
  Branches     1648     1648              
==========================================
- Hits         6111     6110       -1     
  Misses        366      366              
- Partials      321      322       +1     

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[chenjiahan]

👍