slight corrections and improvements for docker-related configs

Dockerfile

@@ -18,4 +18,4 @@ COPY --from=build /app/target/Inviter.jar Inviter.jar
 RUN chmod 755 Inviter.jar
 
 # Run the JAR file
-CMD ["java", "-jar", "Inviter.jar"]
+CMD ["java", "-jar", "Inviter.jar", "--hostname=0.0.0.0"]

docker-compose.yml

@@ -3,11 +3,10 @@ services:
     build:
       context: .
       dockerfile: Dockerfile
+    restart: unless-stopped
     container_name: inviter
     stdin_open: true
     tty: true
-    ports:
-      - "8080:8080"
     volumes:
       - inviter:/app