chore: admin folder structure (#8632)

* chore: admin folder structure

* fix: copy right check and formatting

* fix: types

apps/admin/components/instance/instance-not-ready.tsx

@@ -0,0 +1,32 @@
+/**
+ * Copyright (c) 2023-present Plane Software, Inc. and contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * See the LICENSE file for details.
+ */
+
+import Link from "next/link";
+import { Button } from "@plane/propel/button";
+// assets
+import PlaneTakeOffImage from "@/app/assets/images/plane-takeoff.png?url";
+
+export function InstanceNotReady() {
+  return (
+    <div className="h-full w-full relative container px-5 mx-auto flex justify-center items-center">
+      <div className="w-auto max-w-2xl relative space-y-8 py-10">
+        <div className="relative flex flex-col justify-center items-center space-y-4">
+          <h1 className="text-24 font-bold pb-3">Welcome aboard Plane!</h1>
+          <img src={PlaneTakeOffImage} alt="Plane Logo" />
+          <p className="font-medium text-14 text-placeholder">Get started by setting up your instance and workspace</p>
+        </div>
+
+        <div>
+          <Link href={"/setup/?auth_enabled=0"}>
+            <Button size="xl" className="w-full">
+              Get started
+            </Button>
+          </Link>
+        </div>
+      </div>
+    </div>
+  );
+}