Fix vite build and webpack warning

[nightwing]

fix build failing with vite and the warning from webpack #5099.

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[codecov]

Codecov Report

Patch coverage: 94.11% and project coverage change: +0.15 🎉

Comparison is base (df2ecbe) 86.98% compared to head (e8ac042) 87.13%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5192      +/-   ##
==========================================
+ Coverage   86.98%   87.13%   +0.15%     
==========================================
  Files         565      564       -1     
  Lines       45107    45029      -78     
  Branches     6931     6913      -18     
==========================================
+ Hits        39235    39237       +2     
+ Misses       5872     5792      -80     

Flag	Coverage Δ
unittests	87.13% <94.11%> (+0.15%)	⬆️

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Impacted Files	Coverage Δ
src/css/editor-css.js	100.00% <ø> (ø)
src/theme/textmate-css.js	100.00% <ø> (ø)
src/theme/tomorrow-css.js	100.00% <ø> (ø)
src/config.js	84.37% <91.66%> (+3.47%)	⬆️
src/lib/keys.js	100.00% <100.00%> (ø)
src/theme/textmate.js	100.00% <100.00%> (ø)
src/theme/tomorrow.js	100.00% <100.00%> (ø)
src/virtual_renderer.js	78.74% <100.00%> (ø)

... and 5 files with indirect coverage changes

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