chore: better naming of docker containers

docker-compose.yml

@@ -1,6 +1,6 @@
 version: "3.9"
 services:
-  frontend:
+  iptv_restream_frontend:
     build:
       context: ./frontend
       dockerfile: Dockerfile
@@ -18,7 +18,7 @@ services:
     networks:
       - app-network
 
-  backend:
+  iptv_restream_backend:
     build:
       context: ./backend
       dockerfile: Dockerfile
@@ -31,7 +31,7 @@ services:
       - app-network
 
   # Nginx Reverse Proxy
-  nginx:
+  iptv_restream_nginx:
     image: nginx:alpine
     volumes:
       - ./deployment/nginx/nginx.conf:/etc/nginx/nginx.conf