feat(storefront): update FAQ and legal documentation

- Added new FAQ sections for account security, ordering and checkout, returns, shipping, and contact information.
- Introduced legal documents including privacy policy, terms of service, data protection, and general terms and conditions.
- Updated package dependencies to include gray-matter and remark-gfm for enhanced markdown support.

apps/storefront/src/app/layout.tsx

@@ -3,6 +3,7 @@ import { DM_Sans, Fraunces } from "next/font/google";
 import { ClerkProvider } from "@clerk/nextjs";
 import { ConvexClientProvider } from "@repo/convex";
 import { CartUIProvider } from "../components/cart/CartUIProvider";
+import { AnnouncementBar } from "../components/layout/AnnouncementBar";
 import { Header } from "../components/layout/header/Header";
 import { SessionCartMerge } from "../lib/session/SessionCartMerge";
 import { StoreUserSync } from "../lib/session/StoreUserSync";
@@ -18,7 +19,7 @@ const dmSans = DM_Sans({
 
 const fraunces = Fraunces({
   subsets: ["latin"],
-  weight: ["400", "600", "700"],
+  weight: ["100", "400", "600", "700"],
   variable: "--font-fraunces",
 });
 
@@ -45,6 +46,7 @@ export default function RootLayout({
             <SessionCartMerge />
             <StoreUserSync />
             <CartUIProvider>
+              <AnnouncementBar />
               <Header />
               {children}
               <Footer />