Allow webapp container to support user defined graph directory environment

I want to define logseq directory with podman/docker while deploying. Without needing to chose on my web browser on the first setup.

I am not sure if it works like this way but at the moment Firefox and many other browsers doesn’t support File System API and because of this I can’t chose logseq graph directory.

logseq/docker-web-app-guide.md at master · logseq/logseq · GitHub

Example:

docker run -d --rm -p 3001:80 \
    -v /home/user/Logseq:/Logseq \
    -e LOGSEQ_DIRECTORY=/Logseq \
    ghcr.io/logseq/logseq-webapp:latest