chore: enable reportUnusedDisableDirectives for eslint

[snitin315]

This PR contains a:

• bugfix
• new feature
• code refactor
• test update
• typo fix
• metadata update

Motivation / Use-Case

enable reportUnusedDisableDirectives for eslint.

Breaking Changes

None

Additional Info

No

[codecov]

Codecov Report

Merging #150 (72ffa3d) into master (adcb7df) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #150   +/-   ##
=======================================
  Coverage   97.39%   97.39%           
=======================================
  Files           6        6           
  Lines         730      730           
  Branches      317      317           
=======================================
  Hits          711      711           
  Misses         17       17           
  Partials        2        2           

Impacted Files	Coverage Δ
src/ValidationError.js	96.50% <ø> (ø)

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