Redirect all the links to tails.boum.org/blueprint to blueprints.tails.boum.org

• Repair ikiwiki links using a new ikiwiki shortcut.
  • Propose rewrite rules to redirect old URLs to the new ones.

Something like ^/blueprint/(.*)$ https://blueprint.tails.boum.org/$1

Parent Task: #9174

Related issues

• Blocked by #9181
• Blocks #9176

Original created by @sajolida on 9180 (Redmine)