fix: clean location names in reference badges and detail pages

app/[locale]/referenzen/[slug]/page.tsx

@@ -135,7 +135,9 @@ export default async function ReferenceDetail(props: { params: Promise<{ locale:
                 <MapPin className="w-8 h-8 text-primary shrink-0" />
                 <div>
                   <p className="text-sm text-white/50 mb-1 uppercase tracking-wider font-bold">Ort</p>
-                  <p className="font-semibold text-lg">{reference.frontmatter.location}</p>
+                  <p className="font-semibold text-lg">
+                    {reference.frontmatter.location ? reference.frontmatter.location.split('/')[0].replace(/\b\d{5}\b/g, '').trim() : ''}
+                  </p>
                 </div>
               </div>
               <div className="flex items-start gap-4 p-6 bg-white/5 rounded-2xl border border-white/10 backdrop-blur-sm">