Repair dotfiles persistence feature by adding a symlink from...
Repair dotfiles persistence feature by adding a symlink from /lib/live/mount/persistence to /live/persistence. live-boot's "link" option generates symlinks to /lib/live/mount/persistence. This is correct in the supported use case (persistence initialized at initramfs time), because components/9990-main.sh does "Move all mountpoints below /live into /root/lib/live/mount" after setting up persistence. Our own config/chroot_local-includes/usr/local/sbin/live-persist, however, mounts stuff in /live/persistence instead, so the generated links are wrong. We have lots of Tails-specific stuff that depends on the /live/persistence path, so I'd rather not change that, and instead I'm adding a compatibility symlinks. Will-fix: #10784