Have a scenario of the assistant for Tails Installer

In Tails Installer we will point to the installation instructions. These should take into account that people already have Tails Installer installed, so maybe only propose downloading as side option, and start from installing the final Tails.

Related issues

Related to #5466 (closed)
Blocks #13176 (closed)

Original created by @sajolida on 11576 (Redmine)

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