Draft: Avoid adding /var/log into the package
- Explicitely configure journald to use persistent storage rather than relying on the default (auto) and creating /var/log/journal.
- Use meson option (create-log-dirs=false) instead of removing /var/log/journal/remote. /var/log/journal will be created by journald on startup (because of 1.) /var/log/journal/remote will be created systemd-journal-remote on startup (via LogsDirectory) -> this has the nice side effect of reducing the tmpfiles.legacy.in patch to 1 line.
Motivated by: archlinux/rfcs#3