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/components/ui/skeleton.tsx

@@ -0,0 +1,15 @@
+import { cn } from "@/lib/utils";
+
+function Skeleton({
+	className,
+	...props
+}: React.HTMLAttributes<HTMLDivElement>) {
+	return (
+		<div
+			className={cn("animate-pulse rounded-md bg-primary/10", className)}
+			{...props}
+		/>
+	);
+}
+
+export { Skeleton };