Have Tails Installer in a Ubuntu PPA

A personal PPA is OK to start with, next steps are tracked as subtasks of #10664 (closed).

Parent Task: #8549 (closed)

Subtasks

• #10413 (closed)
• #10602 (closed)
• #10702 (closed)

Related issues

• Blocks #10664 (closed)

Original created by @sajolida on 10407 (Redmine)