Fix notes field breaking table in classifications editor preview

[lmcnulty]

Resolves #3046.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 12 lines in your changes missing coverage. Please review.

Project coverage is 79.31%. Comparing base (64e1275) to head (663601e).
Report is 3 commits behind head on staging.

Files with missing lines	Patch %	Lines
site/gatsby-site/src/components/taxa/Taxonomy.js	0.00%	9 Missing and 3 partials ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           staging    #3055      +/-   ##
===========================================
+ Coverage    79.25%   79.31%   +0.06%     
===========================================
  Files          165      165              
  Lines        13263    13267       +4     
  Branches      1524     1476      -48     
===========================================
+ Hits         10511    10523      +12     
+ Misses        2459     2454       -5     
+ Partials       293      290       -3     

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