add celery background tasks and redis server for celery, also modify django to use redis instead of postgres for caching for speed improvement and alleviating sql traffic

docker-compose.yml

@@ -16,6 +16,22 @@ services:
       - PUBLIC_HOST=localhost
       - ALLOWED_HOSTS=127.0.0.1,localhost
       - DISABLE_CACHE=false
+  celery:
+    build: .
+    command: ["celery", "-A", "pkmntrade_club.django_project", "worker", "-l", "INFO", "-B", "-E"]
+    restart: always
+    env_file:
+      - .env
+    environment:
+      - DEBUG=true
+      - PUBLIC_HOST=localhost
+      - ALLOWED_HOSTS=127.0.0.1,localhost
+      - DISABLE_CACHE=false
+  redis:
+    image: redis:latest
+    restart: always
+    ports:
+      - 6379:6379
 #     depends_on:
 #       db:
 #         condition: service_healthy