Chore: Eslint automatic fixes

[tuliomir]

Acceptance Criteria

• All automatic adjustments by prettier should be applied
• All automatic fixes by eslint --fix should be applied
• A few manually implemented fixes for Typescript errors revealed by the automatic changes ( 5803f3e )
• A necessary adaptation in a function call because its type was revealed to be incorrect by eslint --fix ( 81c994d )

Security Checklist

• Make sure you do not include new dependencies in the project unless strictly necessary and do not include dev-dependencies as production ones. More dependencies increase the possibility of one of them being hijacked and affecting us.

[tuliomir]

Passing a changeAddress as null was not expected by the sendManyOutputsTransaction method and had to be changed to undefined to comply with the expected type changeAddress?: string;. Otherwise the build phase would break.

The tests had to be changed accordingly. Since this is a static type issue, it's not expected that it will cause any issues with the wallet-lib consumers.

Notes

1. Another alternative solution would be adding null to the valid types for this parameter: changeAddress?: string | null.

2. This was previously not failing because instead of a simple object using the spread operator, the Object.assign() method was being used to build the parameters, bypassing the typescript checkers.

[codecov]

Codecov Report

Attention: Patch coverage is 74.38424% with 104 lines in your changes missing coverage. Please review.

Project coverage is 79.67%. Comparing base (76bb097) to head (81c994d).

Files	Patch %	Lines
src/api/wallet.js	11.62%	38 Missing ⚠️
src/api/txApi.js	42.30%	15 Missing ⚠️
src/new/sendTransaction.ts	75.00%	12 Missing ⚠️
src/api/metadataApi.ts	0.00%	8 Missing ⚠️
src/nano_contracts/builder.ts	66.66%	6 Missing ⚠️
src/models/create_token_transaction.ts	58.33%	5 Missing ⚠️
src/config.ts	75.00%	3 Missing ⚠️
src/new/wallet.js	96.05%	3 Missing ⚠️
src/models/partial_tx.ts	92.59%	2 Missing ⚠️
src/models/transaction.ts	91.66%	2 Missing ⚠️
... and 7 more

Additional details and impacted files

@@             Coverage Diff             @@
##           master     #670       +/-   ##
===========================================
+ Coverage   62.79%   79.67%   +16.88%     
===========================================
  Files          77       77               
  Lines        5886     5920       +34     
  Branches     1229     1280       +51     
===========================================
+ Hits         3696     4717     +1021     
+ Misses       2094     1185      -909     
+ Partials       96       18       -78     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.