- Replaced global navbar, now mobile friendly

- Corrected sizing of LyricSearchInputField
- Removed sitemap from auto-generated robots.txt

src/middleware.js

@@ -0,0 +1,20 @@
+import { defineMiddleware } from 'astro:middleware';
+
+export const onRequest = defineMiddleware(async (context, next) => {
+  try {
+    // Let Astro handle the request first
+    const response = await next();
+    
+    // If it's a 404, redirect to home
+    if (response.status === 404) {
+      console.log(`404 redirect: ${context.url.pathname} -> /`);
+      return context.redirect('/', 302);
+    }
+    
+    return response;
+  } catch (error) {
+    // Handle any middleware errors by redirecting to home
+    console.error('Middleware error:', error);
+    return context.redirect('/', 302);
+  }
+});