Changes to Dockerfile to fix error in installing MongoDB

docker/entrypoint.sh

@@ -4,8 +4,8 @@
 nginx -g "daemon off;" &
 
 # Start Node.js backend
-node src/backend/ssh.cjs
-node src/backend/database.cjs
+node src/backend/ssh.cjs &
+node src/backend/database.cjs &
 
 # Keep container running
 wait