Consider using Tails Installer to do backups

See https://tails.boum.org/blueprint/backups#index7h2

Blueprint: https://tails.boum.org/blueprint/backups#index7h2

Parent Task: #7049

Related issues

• Has duplicate #10405 (closed)
• Blocks #9889 (closed)

Original created by @sajolida on 8812 (Redmine)