Rework command lines on expert scenario

• Rework all command lines [32] - One liner - Simplier versions - Expected output - Verbose
  • Use local signature by default [44]
  • Explain that unverified signatures are fine

Feature Branch: web/10621-expert-command-lines

Parent Task: #8592 (closed)

Related issues

• Blocked by #8557 (closed)
• Blocked by #8805 (closed)

Original created by @sajolida on 10621 (Redmine)