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

frontend/eslint.config.mjs

@@ -0,0 +1,16 @@
+import { dirname } from "path";
+import { fileURLToPath } from "url";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+const compat = new FlatCompat({
+	baseDirectory: __dirname,
+});
+
+const eslintConfig = [
+	...compat.extends("next/core-web-vitals", "next/typescript"),
+];
+
+export default eslintConfig;