fix: add text guard to prevent undefined error in troubleshoot button

Prevent button from rendering when socketError is a plain string,
which would result in text being undefined.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: tahierhussain

frontend/src/ide/chat-ai/DisplayErrorMessages.jsx

@@ -56,7 +56,7 @@ const DisplayErrorMessages = memo(function DisplayErrorMessages({
               type={showAsWarning ? "warning" : "error"}
               className="width-100"
               description={
-                !showAsWarning && onTroubleshoot ? (
+                !showAsWarning && onTroubleshoot && text ? (
                   <Button
                     type="link"
                     size="small"