Fix app name phrasing and refresh blog seed dates

resources/js/layouts/app/Header.tsx

@@ -136,7 +136,7 @@ const Header: React.FC = () => {
       <div className="container mx-auto px-4 py-4">
         <div className="flex items-center justify-between">
           <Link href={localizedPath('/')} className="flex items-center gap-4">
-            <img src="/logo-transparent-md.png" alt="Fotospiel App Logo" className="h-12 w-auto" />
+            <img src="/logo-transparent-md.png" alt="Logo der Fotospiel App" className="h-12 w-auto" />
             <span className="text-2xl font-bold font-display text-pink-500">
              Die Fotospiel App
             </span>