Polish website flow and add Questions story

src/app/layout.tsx

@@ -1,6 +1,6 @@
 import "~/styles/globals.css";
 
-import { type Metadata } from "next";
+import { type Metadata, type Viewport } from "next";
 import { Instrument_Sans, Playfair_Display } from "next/font/google";
 
 import { UmamiAnalytics } from "~/components/umami-analytics";
@@ -42,6 +42,13 @@ export const metadata: Metadata = {
   },
 };
 
+export const viewport: Viewport = {
+  themeColor: [
+    { media: "(prefers-color-scheme: light)", color: "#f4f9f7" },
+    { media: "(prefers-color-scheme: dark)", color: "#071415" },
+  ],
+};
+
 export default function RootLayout({
   children,
 }: Readonly<{ children: React.ReactNode }>) {