feat(navigation): add favorite entry and Menu tab

src/app/chat/chat-screen.tsx

@@ -38,7 +38,6 @@ import {
 } from "./chat-image-overlay-url";
 import {
   deriveIsGuest,
-  shouldStartExternalBrowserPrompt,
 } from "./chat-screen.helpers";
 import { useFirstRechargeOfferBanner } from "./hooks/use-first-recharge-offer-banner";
 import { useChatUnlockCoordinator } from "./hooks/use-chat-unlock-coordinator";
@@ -118,12 +117,6 @@ export function ChatScreen() {
   });
   const shouldShowPwaInstall =
     state.historyLoaded && state.historyMessages.length >= 10;
-  const shouldShowBrowserHint = shouldStartExternalBrowserPrompt({
-    hasInitialized: authState.hasInitialized,
-    isLoading: authState.isLoading,
-    loginStatus: authState.loginStatus,
-  });
-
   useChatGuestLogin({
     dispatch: authDispatch,
     hasInitialized: authState.hasInitialized,
@@ -276,13 +269,13 @@ export function ChatScreen() {
         <div className="relative z-1 flex min-h-0 flex-[1_1_auto] flex-col">
           <ChatHeader
             isGuest={isGuest}
-            showBrowserHint={shouldShowBrowserHint}
             offerBanner={
               <FirstRechargeOfferBanner
                 visible={firstRechargeOfferBanner.visible}
                 discountPercent={firstRechargeOfferBanner.discountPercent}
                 onClick={firstRechargeOfferBanner.claim}
                 onClose={firstRechargeOfferBanner.close}
+                variant="compact"
               />
             }
           />