feat: overhaul competence pages, unify brand colors, and polish site integrity

- Rewrote all 5 competence pages (Kabeltiefbau, Bohrtechnik, Glasfaser, Planung, Vermessung) with factual data from references
- Unified brand colors: replaced toxic neon green with brand-aligned teal (#10a379)
- Fixed ReferencesSlider injection in dynamic MDX pages
- Enhanced Footer with icon parity, improved branding placement, and unified hover effects
- Refined Header with 3D micro-animations and improved dropdown visibility
- Fixed localized tracking API (rewrites for /stats/api/send)
- Resolved ReferenceErrors in InteractiveGermanyMap and Header state management
- Cleaned reference titles and truncated metadata in lists

content/de/referenzen/forst.mdx

@@ -1,9 +1,9 @@
 ---
-title: "Neubau Kabeltrasse, 03149 Forst"
+title: "Neubau Kabeltrasse, Forst"
 client: "Mitteldeutsche Netzgesellschaft Strom mbH"
-date: "2020-09-30"
+date: "2020-03-01"
 dateString: "03/2020 bis 09/2020"
-location: "Forst"
+location: "03149 Forst"
 featuredImage: "/assets/photos/DSC02156.jpg"
 ---