Use Uint8Array.fromBase64 in the test/integration/highlight_editor_spec.mjs file

[Snuffleupagus]

No description provided.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.41%. Comparing base (ea18e73) to head (057507f).

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #21323      +/-   ##
==========================================
+ Coverage   81.39%   81.41%   +0.01%     
==========================================
  Files         256      256              
  Lines       65337    65337              
==========================================
+ Hits        53183    53192       +9     
+ Misses      12154    12145       -9     

Flag	Coverage Δ
integrationtest	66.99% <ø> (+0.02%)	⬆️
unittestcli	56.07% <ø> (+0.01%)	⬆️

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[timvandermeij]

Thank you for simplifying this a bit!