update docker-compose to change port mapping and clean up environment variables

docker-compose.production.yml

@@ -7,20 +7,14 @@ services:
             dockerfile: Dockerfile
         container_name: lcc-tt-booking
         ports:
-            - '3000:3000'
+            - '3036:3000'
+        env_file:
+            - .env.production
         environment:
             - NODE_ENV=production
             - DATABASE_URL=/app/data/sqlite.db
             - NEXTAUTH_URL=https://lcc-tt-booking.mikicvi.com
-            - NEXTAUTH_SECRET=${NEXTAUTH_SECRET}
-            - EMAIL_USER=${EMAIL_USER}
-            - EMAIL_PASSWORD=${EMAIL_PASSWORD}
-            - ADMIN_EMAIL=${ADMIN_EMAIL}
-            - ADMIN_PASSWORD=${ADMIN_PASSWORD}
             - PORT=3000
-            - RATE_LIMIT_MAX=${RATE_LIMIT_MAX:-100}
-            - RATE_LIMIT_WINDOW=${RATE_LIMIT_WINDOW:-900000}
-            - LOG_LEVEL=${LOG_LEVEL:-info}
         volumes:
             - ./data:/app/data
             - ./backups:/app/backups