feat(landing): Add kontakt, datenschutz pages, integrate brevo newsletter and contact, add error-handler

landing/plugins/error-handler.ts

@@ -0,0 +1,15 @@
+import type { NuxtError } from 'nuxt/app'
+
+export default defineNuxtPlugin((nuxtApp) => {
+  nuxtApp.hook('vue:error', (error: unknown, _instance, info) => {
+    const statusCode = (error as NuxtError)?.statusCode
+    if (statusCode && statusCode >= 500) {
+      console.error(`[${statusCode}] Vue Error:`, error, info)
+    }
+
+    // Print out all errors that are not HTTP errors
+    if (!statusCode) {
+      console.error('[unknown] Vue Error:', error, info)
+    }
+  })
+})