[TOOL-2808] Dashboard: Remove Announcement banner (#5811)

## Problem solved

Short description of the bug fixed or feature added

<!-- start pr-codex -->

---

## PR-Codex overview
This PR focuses on updating the handling of the `UnlimitedWalletsBanner` component in the dashboard application by removing its direct usage and replacing it with a placeholder comment, while also modifying the `knip.json` configuration to include an additional file in the ignore list.

### Detailed summary
- Updated `apps/dashboard/knip.json`: Added `src/components/notices/AnnouncementBanner.tsx` to the `ignore` array.
- Modified `apps/dashboard/src/pages/_app.tsx`: Replaced `<UnlimitedWalletsBanner />` with a comment `{/* Banner goes here */}`.
- Updated `apps/dashboard/src/app/layout.tsx`: Similarly replaced `<UnlimitedWalletsBanner />` with a comment `{/* Banner goes here */}`.
- Changed `AnnouncementBanner` function to `export function AnnouncementBanner`.

> ✨ Ask PR-Codex anything about this PR by commenting with `/codex {your question}`

<!-- end pr-codex -->

apps/dashboard/knip.json

@@ -1,7 +1,10 @@
 {
   "$schema": "https://unpkg.com/knip@5/schema.json",
   "next": true,
-  "ignore": ["src/@/components/ui/**"],
+  "ignore": [
+    "src/@/components/ui/**",
+    "src/components/notices/AnnouncementBanner.tsx"
+  ],
   "project": ["src/**"],
   "ignoreBinaries": ["only-allow", "biome"],
   "ignoreDependencies": ["@storybook/blocks", "@thirdweb-dev/service-utils"]

apps/dashboard/src/app/layout.tsx

@@ -7,7 +7,6 @@ import PlausibleProvider from "next-plausible";
 import { Inter } from "next/font/google";
 import NextTopLoader from "nextjs-toploader";
 import { Suspense } from "react";
-import { UnlimitedWalletsBanner } from "../components/notices/AnnouncementBanner";
 import { OpCreditsGrantedModalWrapperServer } from "../components/onboarding/OpCreditsGrantedModalWrapperServer";
 import { EnsureValidConnectedWalletLoginServer } from "./components/EnsureValidConnectedWalletLogin/EnsureValidConnectedWalletLoginServer";
 import { PostHogProvider } from "./components/root-providers";
@@ -72,7 +71,7 @@ export default function RootLayout({
             fontSans.variable,
           )}
         >
-          <UnlimitedWalletsBanner />
+          {/* Banner goes here */}
           <AppRouterProviders>
             {children}
             <Suspense fallback={null}>

apps/dashboard/src/components/notices/AnnouncementBanner.tsx

@@ -5,7 +5,7 @@ import { useLocalStorage } from "hooks/useLocalStorage";
 import { ChevronRightIcon, XIcon } from "lucide-react";
 import { useSelectedLayoutSegment } from "next/navigation";
 
-function AnnouncementBanner(props: {
+export function AnnouncementBanner(props: {
   href: string;
   label: string;
   trackingLabel: string;
@@ -56,13 +56,3 @@ function AnnouncementBanner(props: {
     </div>
   );
 }
-
-export function UnlimitedWalletsBanner() {
-  return (
-    <AnnouncementBanner
-      href="/team/~/~/settings/billing?coupon=FREEWALLETS24"
-      label='Claim 12 months of free in-app wallets. Use code "FREEWALLETS24". Redeem offer by December 31st!'
-      trackingLabel="unlimited-wallets"
-    />
-  );
-}

apps/dashboard/src/pages/_app.tsx

@@ -22,7 +22,6 @@ import type { ThirdwebNextPage } from "utils/types";
 import chakraTheme from "../theme";
 import "@/styles/globals.css";
 import { DashboardRouterTopProgressBar } from "@/lib/DashboardRouter";
-import { UnlimitedWalletsBanner } from "../components/notices/AnnouncementBanner";
 
 const inter = interConstructor({
   subsets: ["latin"],
@@ -260,7 +259,7 @@ const ConsoleApp = memo(function ConsoleApp({
       />
 
       <DashboardRouterTopProgressBar />
-      <UnlimitedWalletsBanner />
+      {/* Banner goes here */}
 
       <TailwindTheme>
         <ChakraProvider theme={chakraThemeWithFonts}>