feat(landing): Update contact and i18n files

landing/app/components/landing/AdditionalFeatures.vue

@@ -76,7 +76,7 @@
     <!-- Bottom CTA -->
     <div class="mt-12 text-center">
       <p class="text-gray-500 dark:text-gray-400 mb-4">{{ $t('additionalFeatures.ctaQuestion') }}</p>
-      <UButton to="#kontakt" variant="outline" class="btn-outline-gradient">
+      <UButton to="/kontakt" variant="outline" class="btn-outline-gradient">
         <UIcon name="i-lucide-message-circle" class="w-4 h-4 mr-2" />
         {{ $t('additionalFeatures.ctaButton') }}
       </UButton>

landing/app/components/landing/ExpertAccess.vue

@@ -47,7 +47,7 @@
             style="animation-delay: 200ms"
           >
             <UButton
-              to="mailto:info@gremiumhub.de"
+              to="/kontakt"
               size="xl"
               class="bg-white text-primary-700 hover:bg-white/90 px-8 py-4 text-lg font-semibold rounded-xl shadow-lg"
             >

landing/app/components/landing/FrameworkAgreement.vue

@@ -62,7 +62,7 @@
         <!-- CTA -->
         <div class="mt-8">
           <UButton
-            to="#kontakt"
+            to="/kontakt"
             size="xl"
             class="btn-gradient px-8 py-4 text-lg font-semibold rounded-xl shadow-lg shadow-primary-500/25"
           >

landing/app/components/landing/HeroSection.vue

@@ -65,7 +65,7 @@
         <div class="flex flex-wrap justify-center gap-4 animate-fade-in-up" style="animation-delay: 400ms">
           <UButton
             size="xl"
-            to="#kontakt"
+            to="/kontakt"
             trailing-icon="i-lucide-arrow-right"
             class="btn-gradient px-8 py-4 text-lg font-semibold rounded-xl shadow-lg shadow-primary-500/25 hover:shadow-xl hover:shadow-primary-500/30 transition-all"
           >
@@ -142,12 +142,7 @@
 
     <!-- Scroll indicator - stable wrapper for click target, animated inner element -->
     <div class="absolute bottom-8 left-1/2 -translate-x-1/2 z-20">
-      <a
-        href="#betriebsraete"
-        class="block"
-        :aria-label="$t('hero.scrollDown')"
-        @click.prevent="scrollToSection"
-      >
+      <a href="#betriebsraete" class="block" :aria-label="$t('hero.scrollDown')" @click.prevent="scrollToSection">
         <div
           class="animate-bounce flex items-center justify-center w-12 h-12 rounded-full glass text-gray-600 dark:text-gray-300 hover:bg-white/80 dark:hover:bg-gray-800/80 transition-colors"
         >

landing/app/components/landing/TeamSection.vue

@@ -154,7 +154,7 @@
           {{ $t('team.cta.text') }}
         </p>
         <UButton
-          to="mailto:info@gremiumhub.de"
+          to="/kontakt"
           size="xl"
           class="btn-gradient px-8 py-4 rounded-xl font-semibold shadow-lg shadow-primary-500/25 hover:shadow-primary-500/40 transition-shadow"
         >