[docs] reimagine the Configuration File article

[titerman]

What is your Scenario?

The article is too long, too difficult to navigate, too inconsistent, at times outdated and badly written.

Related articles

• Guides
  • Configuration File
• Other articles that may need edits for uniformity purposes
  • Command Line Interface (guide)
  • Runner
  • Best Practices

What are you suggesting?

Restructure the article, update descriptions to fit our current guidelines, edit related articles for greater consistency

What alternatives have you considered?

No response

Additional context

No response