chore: remove network_mode

Author: axelrindle

.devcontainer/docker-compose.yml

@@ -10,9 +10,3 @@ services:
 
     # Overrides default command so things don't shut down after the process ends.
     command: sleep infinity
-
-    # Runs app on the same network as the database container, allows "forwardPorts" in devcontainer.json function.
-    network_mode: service:postgres
-
-    # Use "forwardPorts" in **devcontainer.json** to forward an app port locally.
-    # (Adding the "ports" property to this file will not forward from a Codespace.)