chore: fix and check suppressed linter warnings (#38)

Description

• check and fix suppressed warnings for linters such as:
  • golint
  • gosec
  • gocritic
  • goimports
  • gonmd
  • revive
  • stylecheck
  • wsl
• remove the new-from-rev configuration option from .golangci.yml

Related issue

#38 (closed)

Examples

Checklist

• the MR description has been reviewed
• this MR contains text changes and they have been reviewed OR there are no texts changes
• this MR contains GUI/CLI changes and they have been reviewed OR there are no GUI/CLI changes
• this MR contains API changes, specifications reflect those changes and they have been reviewed OR there are no API changes

Closes #38 (closed)