feat: update signin signup ui

Signed-off-by: Adithya Krishna <adithya@documenso.com>

apps/web/src/components/(dashboard)/settings/layout/activity-back.tsx

@@ -0,0 +1,22 @@
+'use client';
+
+import { useRouter } from 'next/navigation';
+
+import { Button } from '@documenso/ui/primitives/button';
+
+export default function ActivityPageBackButton() {
+  const router = useRouter();
+  return (
+    <div>
+      <Button
+        className="flex-shrink-0"
+        variant="secondary"
+        onClick={() => {
+          void router.back();
+        }}
+      >
+        Back
+      </Button>
+    </div>
+  );
+}