fix(i18n): fix reference page translation, fix map zoom, connect contact form to server action, fix english 404 links, fix certificate pdf links

components/home/Hero.tsx

@@ -20,23 +20,23 @@ export default function Hero({ data }: { data?: any }) {
   const [searchQuery, setSearchQuery] = useState('');
   const [isSearchOpen, setIsSearchOpen] = useState(false);
   const [heroPlaceholder, setHeroPlaceholder] = useState(
-    'Projekt beschreiben oder Kabel suchen...',
+    t('searchPlaceholder')
   );
   const typingRef = useRef<ReturnType<typeof setTimeout> | null>(null);
 
   const HERO_PLACEHOLDERS = [
-    'Querschnittsberechnung für 110kV Trasse', // Hochspannung
-    'Wie schwer ist NAYY 4x150?',
-    'Ich plane einen Solarpark, was brauche ich?', // Projekt Solar
-    'Unterschied zwischen N2XSY und NAY2XSY?', // Fach
-    'Mittelspannungskabel für Windkraftanlage', // Windpark
-    'Welches Aluminiumkabel für 20kV?', // Mittelspannung
+    t('placeholder1'),
+    t('placeholder2'),
+    t('placeholder3'),
+    t('placeholder4'),
+    t('placeholder5'),
+    t('placeholder6'),
   ];
 
   // Typing animation for the hero search placeholder
   useEffect(() => {
     if (searchQuery) {
-      setHeroPlaceholder('Projekt beschreiben oder Kabel suchen...');
+      setHeroPlaceholder(t('searchPlaceholder'));
       return;
     }
 
@@ -152,7 +152,7 @@ export default function Hero({ data }: { data?: any }) {
                 size="lg"
                 className="rounded-xl px-6 py-4 shrink-0 flex items-center shadow-md font-bold cursor-pointer hover:bg-accent hover:brightness-110"
               >
-                Fragen
+                {t('ask')}
                 <ChevronRight className="w-5 h-5 ml-2 -mr-1" />
               </Button>
             </form>