Setup docker for production and development

Change ./init.sh to be an executable then run it.

The default inner container ports are as followed:
- Postgres: 5432:5432
- Backend: 3001:3000
- Frontend: 3000:3000

- Frontend dev: 8000

The backend image needs to be built:

docker compose up -d --build

init.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/sh
+printf "POSTGRES_USER=\nPOSTGRES_PASSWORD=\nPOSTGRES_DB=\n# Docker inner port container\nPOSTGRES_PORT=5432\nBACKEND_PORT=3000\nFRONTEND_PORT=3000\n" > .env
+ln $(pwd)/.env $(pwd)/backend
+ln $(pwd)/.env $(pwd)/frontend