docs[minor]: Add state of agents survey to docs announcement bar (#26167

)

docs/docusaurus.config.js

@@ -125,8 +125,11 @@ const config = {
     /** @type {import('@docusaurus/preset-classic').ThemeConfig} */
     ({
       announcementBar: {
-        content: 'LangChain 0.2 is out! Leave feedback on the v0.2 docs <a href="https://github.com/langchain-ai/langchain/discussions/21716">here</a>. You can view the v0.1 docs <a href="/v0.1/docs/get_started/introduction/">here</a>.',
+        content:
+          'Share your thoughts on AI agents. <a target="_blank" href="https://langchain.typeform.com/state-of-agents">Take the 3-min survey</a>.',
         isCloseable: true,
+        backgroundColor: "rgba(53, 151, 147, 0.1)",
+        textColor: "rgb(53, 151, 147)",
       },
       docs: {
         sidebar: {