Promote the Linux one-liner install script on download page + update docs for XDG & sandbox notes #269
Description
Hello again! The one-liner tarball script is hidden in docs only:
curl -fsSL https://github.com/zen-browser/updates-server/raw/refs/heads/main/install.sh | $SHELL
[Correct me if i am wrong here]
This script auto-installs to ~/.tarball-installations/zen, adds to PATH/menu, enables seamless auto-updates, and provides the full browser sandbox strength (User Namespaces = true -> better content isolation via user-namespace chroot).
Flatpak restricts unprivileged user namespaces -> User Namespaces = false in about:support, weakening tab isolation.
Docs are also outdated:
Still claim tarball profiles in ~/.zen/, but Zen now prefers XDG paths (~/.config/zen/).