feat: Add profile page server load function and Svelte component

frontend/src/routes/profile/+page.server.ts

@@ -0,0 +1,11 @@
+import { redirect } from '@sveltejs/kit';
+import type { PageServerLoad, RequestEvent } from '../$types';
+
+export const load: PageServerLoad = async (event: RequestEvent) => {
+	if (!event.locals.user) {
+		return redirect(302, '/login');
+	}
+	return {
+		user: event.locals.user
+	};
+};