Use a username and hostname that makes more sense to our users

Right now we use “amnesia” which dates back from … uhhh… and probably doesn’t make much sense for our users. See for example #15571 (closed). It’s also made visible in the screen locker.

Candidates for user name:

• “user”, as suggested in #5655
• “tails”
• Something else?

Next step is to evaluate whether "user" or "tails" is better, based on concrete places when these could create confusion. Trying to replace "amnesia" in our website might be a good starting point.

While doing so we should keep #5655 in mind. We don't want the privacy benefit that we might get from #5655 to undermine usability.

Candidates for host name:

• "debian"
• "host"
• "localhost"
• "tails"

User research findings

• During #18648 (closed), P2 thought that everything inside the "amnesia" folder would by amnesic and disappear when shutting down. Putting the Persistent folder there didn't make sense to her.
• Whonix has "user" and "host".