style: Automatic lint fixes and formatting

[tuliomir]

Acceptance Criteria

• Applies all automatic formatting from prettier
• Applies all automatic linting from lint --fix
• Adds prettier formatting to the CI

Notes

Lint will not be added to the CI now as it requires many manual refactors before it could pass successfully.

As a reviewing reference, this PR is similar to the recent HathorNetwork/hathor-wallet-lib#670

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.