Non-breaking fixes from other PRs

[davidyuk]

extracted from #1917 #1915 #1911

This PR is supported by the Æternity Crypto Foundation

[codecov]

Codecov Report

Attention: 7 lines in your changes are missing coverage. Please review.

Comparison is base (4cb0a8a) 81.44% compared to head (9df3fa4) 81.43%.
Report is 1 commits behind head on develop.

Files	Patch %	Lines
src/tx/builder/field-types/query-fee.ts	80.00%	0 Missing and 2 partials ⚠️
src/tx/builder/schema.ts	75.00%	1 Missing and 1 partial ⚠️
src/utils/errors.ts	33.33%	2 Missing ⚠️
src/aens.ts	50.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1918      +/-   ##
===========================================
- Coverage    81.44%   81.43%   -0.01%     
===========================================
  Files           95       97       +2     
  Lines         3379     3399      +20     
  Branches       674      678       +4     
===========================================
+ Hits          2752     2768      +16     
- Misses         302      304       +2     
- Partials       325      327       +2     

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