flake.nix: use `--watch=always` for tailwind watcher
This forces the watcher to stay alive when running non-interactively
(e.g. when run from within Tilt).
Signed-off-by: Isaac Corbrey <icorbrey@gmail.com>
authored by
isaaccorbrey.com
and committed by
anirudh.fi
c5ad0c11
005cd178