Refactor BlogHeader component by removing unused author logic and simplifying logo display

src/components/BlogHeader.tsx

@@ -1,46 +1,25 @@
 import { Link } from 'react-router-dom';
 import { useCurrentUser } from '@/hooks/useCurrentUser';
-import { useAuthor } from '@/hooks/useAuthor';
 import { LoginArea } from '@/components/auth/LoginArea';
 import { Button } from '@/components/ui/button';
 import { PenSquare, Menu } from 'lucide-react';
 import { Sheet, SheetContent, SheetTrigger } from '@/components/ui/sheet';
-import { Avatar, AvatarFallback, AvatarImage } from '@/components/ui/avatar';
 import { ThemeToggle } from '@/components/ThemeToggle';
-import { genUserName } from '@/lib/genUserName';
 import { useState } from 'react';
 
 export function BlogHeader() {
   const { user } = useCurrentUser();
   const [isMenuOpen, setIsMenuOpen] = useState(false);
-  const author = useAuthor(user?.pubkey || '');
-  const metadata = author.data?.metadata;
-
-  const displayName = user 
-    ? (metadata?.display_name || metadata?.name || genUserName(user.pubkey))
-    : 'Nostr Blog';
 
   return (
     <header className="sticky top-0 z-50 w-full border-b bg-background/95 backdrop-blur supports-[backdrop-filter]:bg-background/60">
       <div className="container flex h-16 items-center justify-between px-4 sm:px-6 lg:px-8">
-        {/* Logo / Brand with Profile */}
+        {/* Logo / Brand */}
         <div className="flex items-center gap-4 sm:gap-6">
           <Link to="/" className="flex items-center gap-2 sm:gap-3 hover:opacity-80 transition-opacity">
-            {user ? (
-              <>
-                <Avatar className="h-8 w-8 sm:h-10 sm:w-10">
-                  <AvatarImage src={metadata?.picture} alt={displayName} />
-                  <AvatarFallback>{displayName[0]?.toUpperCase()}</AvatarFallback>
-                </Avatar>
-                <span className="font-bold text-lg sm:text-xl truncate max-w-[120px] sm:max-w-none">
-                  {displayName}
-                </span>
-              </>
-            ) : (
-              <span className="font-bold text-lg sm:text-xl">
-                Nostr Blog
-              </span>
-            )}
+            <span className="font-bold text-lg sm:text-xl">
+              zelo.news
+            </span>
           </Link>
 
           {/* Desktop Navigation */}