feat: use prebuilt version in Dockerfile

docker-compose.yml

@@ -2,9 +2,7 @@ version: '3.8'
 
 services:
   web:
-    build:
-      context: .
-      dockerfile: Dockerfile
+    image: git-registry.gibb.ch/ast146300/websitem437/mywebsite:latest
     ports:
       - "80:80"
     # Since files are copied in Dockerfile, we only need to mount nginx.conf
@@ -21,4 +19,4 @@ services:
 
 networks:
   web-network:
-    driver: bridge
+    driver: bridge
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