B2B-29: Create register-company form

app/(public)/sign-in/page.tsx

@@ -0,0 +1,22 @@
+import { Button } from "@/components/ui/button";
+import Link from "next/link";
+import React from "react";
+
+export default async function SignIn() {
+  return (
+    <div className="flex flex-col gap-2">
+      <Button variant="outline">
+        <Link href="/">Smart-ID</Link>
+      </Button>
+      <Button variant="outline">
+        <Link href="/">Mobiil-ID</Link>
+      </Button>
+      <Button variant="outline">
+        <Link href="/">ID-Kaart</Link>
+      </Button>
+      <Button variant="outline">
+        <Link href="/register-company">Loo ettevõtte konto</Link>
+      </Button>
+    </div>
+  );
+}