feat: build production-ready wtr weather PWA

components/states/empty-state.tsx

@@ -0,0 +1,13 @@
+import type { LucideIcon } from "lucide-react";
+import { CircleCheckBig } from "lucide-react";
+import { Card } from "@/components/ui/card";
+
+export function EmptyState({ title, description, icon: Icon = CircleCheckBig }: { title: string; description: string; icon?: LucideIcon }) {
+  return (
+    <Card className="flex min-h-52 flex-col items-center justify-center p-8 text-center">
+      <div className="mb-4 rounded-full bg-emerald-500/10 p-3 text-emerald-600 dark:text-emerald-300"><Icon className="size-6" /></div>
+      <h2 className="text-lg font-semibold">{title}</h2>
+      <p className="mt-2 max-w-md text-sm leading-6 text-slate-600 dark:text-slate-300">{description}</p>
+    </Card>
+  );
+}