Assistant: Prepare and validate Windows USB scenario

• Terminology
  • Infography
  • Division of steps
  • Documentation semantics (caution, note, info, shortcut, major step, minor step)
  • Written content

Blueprint: https://tails.boum.org/blueprint/bootstrapping/assistant/windows#index4h1

Parent Task: #9199 (closed)

Related issues

• Blocked by #9200 (closed)
• Blocks #9202 (closed)

Original created by @sajolida on 9201 (Redmine)