fix text wrapping

Author: commit111

samples/agentic-langgraph/app/public/index.html

@@ -21,7 +21,7 @@ <h1>LangGraph Agent Output</h1>
     <button id="sendBtn" style="width: 80px; height: 60px; font-size: 1.2em; padding: 8px;">Send</button>
     <div id="conversation" style="margin-top: 20px;">
         <strong>You:</strong> <span id="sentInput"></span><br><br>
-        <strong>Agent:</strong> <pre id="output" style="display:inline; font-family:sans-serif;"></pre>
+        <strong>Agent:</strong> <pre id="output" style="display:inline; font-family:sans-serif; white-space: pre-wrap;"></pre>
     </div>
 
     <script>