docs(core): monorepo world banner (#23225)

Add a banner on the nx.dev home page pointing to monorepo.tools/conf

(cherry picked from commit fd78152)

nx-dev/nx-dev/pages/index.tsx

@@ -39,7 +39,7 @@ export default function Index(): JSX.Element {
         }}
       />
       <h1 className="sr-only">Next generation monorepo tool</h1>
-      {/*<AnnouncementBanner />*/}
+      <AnnouncementBanner />
       <Header />
       <main id="main" role="main">
         <div className="w-full">

nx-dev/ui-common/src/lib/announcement-banner.tsx

@@ -3,29 +3,29 @@ import Link from 'next/link';
 export function AnnouncementBanner(): JSX.Element {
   return (
     <div className="group relative  border border-y border-slate-200 bg-slate-50/40 transition hover:bg-slate-50 dark:border-slate-800/40 dark:bg-slate-800/60 dark:hover:bg-slate-800">
-      <div className="mx-auto max-w-7xl py-3 px-3 sm:px-6 lg:px-8">
+      <div className="mx-auto max-w-7xl px-3 py-3 sm:px-6 lg:px-8">
         <div className="text-center">
           <p className="text-sm font-medium">
             <span className="md:hidden">
               <Link
-                href="https://go.nx.dev/april-webinar?utm_source=nx.dev"
+                href="https://monorepo.tools/conf?utm_source=nx.dev"
                 className="underline"
               >
-                Webinar April 17: Making the Argument for Monorepos
+                Monorepo World: October 7, 2024
               </Link>
             </span>
             <span className="hidden md:inline">
               <span className="font-semibold">
-                Webinar April 17: Making the Argument for Monorepos
+                Monorepo World: October 7, 2024
               </span>
             </span>
             <span className="ml-2 inline-block">
               <Link
-                href="https://go.nx.dev/april-webinar?utm_source=nx.dev"
+                href="https://monorepo.tools/conf?utm_source=nx.dev"
                 className="font-semibold text-blue-500 underline dark:text-sky-500"
               >
                 <span className="absolute inset-0" aria-hidden="true" />
-                Register now!
+                Join us!
                 <span aria-hidden="true">&rarr;</span>
               </Link>
             </span>