Developer Build Lacking Http 5580 Dashboard

[Chapoly1305]

When building the docker container with Dockerfile.dev, the Dashboard will not be built. When accessing port 5580 via http, the 404 will occur. Websockets service works normally.

mkdir data
docker build -t python-matter-server .
docker run -it --rm \
  --name matter-server \
  --security-opt apparmor=unconfined \
  -v $(pwd)/data:/data \
  -v /run/dbus:/run/dbus:ro \
  --network=host \
  python-matter-server

Since the dashboard is debugging purpose and accessiable in production build, it shall be built as well.