add react + gpt-4 turbo warning

frontend/src/App.tsx

@@ -84,6 +84,11 @@ function App() {
 
   const wsRef = useRef<WebSocket>(null);
 
+  const showReactWarning =
+    selectedCodeGenerationModel ===
+      CodeGenerationModel.GPT_4_TURBO_2024_04_09 &&
+    settings.generatedCodeConfig === Stack.REACT_TAILWIND;
+
   // Indicate coding state using the browser tab's favicon and title
   useBrowserTabIndicator(appState === AppState.CODING);
 
@@ -391,6 +396,13 @@ function App() {
             }
           />
 
+          {showReactWarning && (
+            <div className="text-sm bg-yellow-200 rounded p-2">
+              Sorry - React is not currently working with GPT-4 Turbo. Please
+              use GPT-4 Vision or Claude Sonnet. We are working on a fix.
+            </div>
+          )}
+
           {appState !== AppState.CODE_READY && <TipLink />}
 
           {IS_RUNNING_ON_CLOUD && !settings.openAiApiKey && <OnboardingNote />}