add flutter template

frontend/src/App.tsx

@@ -47,6 +47,8 @@ function App() {
   const [updateInstruction, setUpdateInstruction] = useState("");
   const [isImportedFromCode, setIsImportedFromCode] = useState<boolean>(false);
 
+
+
   // Settings
   const [settings, setSettings] = usePersistedState<Settings>(
     {
@@ -479,11 +481,12 @@ function App() {
           </div>
         )}
 
-        {(appState === AppState.CODING || appState === AppState.CODE_READY) && (
+        {(appState === AppState.CODING || appState === AppState.CODE_READY) && settings.generatedCodeConfig != Stack.FLUTTER && (
           <div className="ml-4">
             <Tabs defaultValue="desktop">
               <div className="flex justify-end mr-8 mb-4">
                 <TabsList>
+
                   <TabsTrigger value="desktop" className="flex gap-x-2">
                     <FaDesktop /> Desktop
                   </TabsTrigger>
@@ -512,6 +515,16 @@ function App() {
             </Tabs>
           </div>
         )}
+
+        {(appState === AppState.CODING || appState === AppState.CODE_READY) && settings.generatedCodeConfig === Stack.FLUTTER && (
+          <div className="ml-4">
+            <CodeTab
+                  code={generatedCode}
+                  setCode={setGeneratedCode}
+                  settings={settings}
+                />
+          </div>
+        )}
       </main>
     </div>
   );

frontend/src/lib/stacks.ts

@@ -6,7 +6,6 @@ export enum Stack {
   VUE_TAILWIND = "vue_tailwind",
   VUE_CSS = "vue_css",
   IONIC_TAILWIND = "ionic_tailwind",
-  
   SVG = "svg",
   FLUTTER = "flutter",
 }

frontend/src/types.ts

@@ -21,6 +21,7 @@ export enum AppState {
   INITIAL = "INITIAL",
   CODING = "CODING",
   CODE_READY = "CODE_READY",
+  CODE_READY_NO_PREVIEW = "CODE_READY_NO_PREVIEW",
 }
 
 export interface CodeGenerationParams {