Fix user configuration variables being overwritten by previous environment

[louneskmt]

trafficstars

Currently, previous environment overwrites new user configuration. https://github.com/getumbrel/umbrel/blob/a423d96e4596b47dc8f5584c6620597a3026bf19/scripts/configure#L100-L102

This can be a problem, as after the first run it is not possible to change user variables like NGINX_PORT.

This PR fixes this issue.

Related : f5a4b8c, https://github.com/getumbrel/umbrel/pull/501#discussion_r584136108

[phenomeus]

@louneskmt with 0.3.10 its still the same :/

[louneskmt]

Yeah that's normal @phenomeus, this PR hasn't been merged yet.

[phenomeus]

ok i will try your commit on my machine, fed up with this and using with tor…

[phenomeus]

i inserted your commit line by line, stoped, reconfigured, started… same issue: with tor I see every detail, with ip:8000 I can login but see nothing, no chain, no sync status etc

[phenomeus]

@louneskmt is there maybe an ETA for this fix?

[mayankchhabra]

Thank you for the PR, @louneskmt! With the launch of umbrelOS 1.0, we've introduced extensive changes to both the source code and the system's architecture. As part of this transition, we're reviewing and closing PRs and issues that might no longer be applicable to the new version. So I'll be closing this PR for now. Thanks again!