add context to docker compose and service

.devcontainer/devcontainer.json

@@ -1,5 +1,5 @@
 {
-    "initializeCommand": "apt-get update -y && apt-get install docker-compose -y && apt-get install docker-compose-plugin -y",
+    "service": "web",
     "dockerComposeFile": "../docker-compose.yaml",
     "forwardPorts": [3000]
 }

docker-compose.yaml

@@ -87,6 +87,7 @@ services:
   backend:
     build:
       dockerfile: docker/Dockerfile.backend
+      context: .
     image: oasst-backend
     environment:
       - POSTGRES_HOST=db
@@ -103,6 +104,7 @@ services:
   web:
     build:
       dockerfile: docker/Dockerfile.website
+      context: .
     image: oasst-web
     environment:
       - DATABASE_URL=postgres://postgres:postgres@webdb/oasst_web