Small improvements to checks

[RobH123]

This change is 

[RobH123]

Should also be ready to publish I think.

[codecov]

Codecov Report

Merging #58 into master will decrease coverage by 0.04%.
The diff coverage is 37.50%.

@@            Coverage Diff             @@
##           master      #58      +/-   ##
==========================================
- Coverage   46.18%   46.14%   -0.05%     
==========================================
  Files          20       20              
  Lines        2217     2241      +24     
  Branches      708      716       +8     
==========================================
+ Hits         1024     1034      +10     
- Misses        732      742      +10     
- Partials      461      465       +4     

Impacted Files	Coverage Δ
src/core/annotation-row-check.js	1.92% <0.00%> (-0.02%)	⬇️
src/core/annotation-table-check.js	3.12% <14.28%> (-0.11%)	⬇️
src/core/tn-table-text-check.js	65.35% <14.28%> (-2.13%)	⬇️
src/core/field-text-check.js	55.81% <66.66%> (+1.11%)	⬆️
src/core/tn-table-row-check.js	70.81% <66.66%> (+0.28%)	⬆️

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[mandolyte]

Reviewed 8 of 9 files at r1.
Reviewable status: 8 of 9 files reviewed, all discussions resolved (waiting on @mandolyte and @PhotoNomad0)

[mandolyte]

Reviewed 1 of 9 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @PhotoNomad0)