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/en/referenzen/eisenhuettenstadt.mdx

@@ -1,19 +1,19 @@
 ---
-title: "Kabelverbindung U30 - T10, 15890 Eisenhüttenstadt"
+title: "Cable Connection U30 - T10, Eisenhüttenstadt"
 client: "ArcelorMittal Eisenhüttenstadt GmbH"
-date: "2019-12-31"
-dateString: "07/2019 bis 12/2019"
-location: "Eisenhüttenstadt"
+date: "2019-07-01"
+dateString: "07/2019 to 12/2019"
+location: "15890 Eisenhüttenstadt"
 featuredImage: "/assets/photos/Etib_E-tib_Tiefbau_Guben_Netzanbindung_Energie_Vermessung_(24_von_99)_groß2.jpg"
 ---
 
-- 2.095 m Kabelgraben ausheben und verfüllen
-- 180 m Horizontalspülbohrung d 160 + d 50
-- 5.700 m Lieferung und Verlegung MS-Kabel 240 mm², 18/30 kV
-- 3.000 m Lieferung und Verlegung PE-Schutzrohr 50 x 4,6 mm
-- 3.000 m Lieferung und Einblasen LWL-Kabel, 12 Fasern
-- 3.000 m Lieferung und Verlegung Steuerkabel, 0,6/1 kV
-- 16 Satz Lieferung und Montage MS-Verbindungsmuffe 240 mm², 18/30 kV
-- 1 Stück Lieferung und Montage LWL-Verbindungsmuffe, 12 Fasern
-- 4 Satz Lieferung und Montage MS-T-Stecker 240 mm², 18/30 kV
-- Hauptprüfung / Mantelprüfung / OTDR-Messung
+- 2,095 m cable trench excavation and backfilling
+- 180 m horizontal directional drilling d 160 + d 50
+- 5,700 m delivery and installation of MV cable 240 mm², 18/30 kV
+- 3,000 m delivery and installation of PE protection pipe 50 x 4.6 mm
+- 3,000 m delivery and blowing in of FO cable, 12 fibers
+- 3,000 m delivery and installation of control cable, 0.6/1 kV
+- 16 sets delivery and assembly of MV connection joint 240 mm², 18/30 kV
+- 1 unit delivery and assembly of FO connection joint, 12 fibers
+- 4 sets delivery and assembly of MV T-connectors 240 mm², 18/30 kV
+- Main testing / sheath testing / OTDR measurement