refactor: add .dockerignore file and configure it

.dockerignore

+.dockerignore
+Dockerfile
+node_modules/
+docker-compose.yml
\ No newline at end of file

docker-compose.yml

@@ -3,6 +3,7 @@ version: '1.0.0'
 services:
   frontend:
     build:
+      context: .
       dockerfile: src/Dockerfile
     env_file:
       - .env
@@ -18,9 +19,10 @@ services:
 
   backend:
     build:
-      context: ./server
+      context: server
+      dockerfile: Dockerfile
     env_file:
-      - ./server/.env
+      - .env
     container_name: node-server
     ports:
       - '${BACKEND_PORT}:${BACKEND_PORT}'