Adjust docker volume mounting strategy.

- Legacy-Id: 19638

.devcontainer/docker-compose.extend.yml

@@ -4,5 +4,7 @@ services:
     app:
         environment:
             EDITOR_VSCODE: 1
+        volumes:
+            - ..:/root/src:cached
         # Runs app on the same network as the database container, allows "forwardPorts" in devcontainer.json function.
         network_mode: service:db

docker/docker-compose.extend.yml

@@ -4,6 +4,8 @@ services:
     app:
         ports:
             - '8000:8000'
+        volumes:
+            - ..:/root/src  
     db:
         ports:
             - '3306'

docker/docker-compose.yml

@@ -12,8 +12,6 @@ services:
                 VARIANT: 3.6-bullseye
                 NODE_VERSION: '16'
                 
-        volumes:
-            - ..:/root/src:cached  
         init: true
         
         # Overrides default command so things don't shut down after the process ends.