Windows-installer: allow single user installs

Users without admin access should be able to install Jami.

https://twitter.com/AnonymousWho911/status/1734176594225439224

assigned to @atraczyk

When it comes to admin access:

May I ask: Is this issue 100% fixed (I think the developers just closed because they couldn't reproduce anymore): #681 (closed)

Because if no users without admin access should get a warning message that there might be issues if you try to copy files from another drive without admin access?

added BacklogLow label

changed title from MSI: allow single user installs to Windows-installer: allow single user installs

mentioned in commit eaf409d6