feat: Implement client feedback & visual verifications

- Update contact map container alignment
- Remove outdated marketing copy on service pages
- Update HDD specs to 400m / 600mm
- Unify reference slider titles globally
- Add employee breakdown stats to Über Uns page

tests/homepage-and-competence-content.test.ts

@@ -75,12 +75,12 @@ describe('Task 6 Content Updates', () => {
 
     // DE Ueber uns
     expect(deContent).toContain('100+');
-    expect(deContent).toContain('ca. 100 engagierten');
+    expect(deContent).toContain('100+ engagierten');
     expect(deContent).toContain('Seit 2016 haben wir in über 200 Projekten quer');
 
     // EN Ueber uns
     expect(enContent).toContain('100+');
-    expect(enContent).toContain('approx. 100 dedicated');
+    expect(enContent).toContain('100+ dedicated');
     expect(enContent).toContain('Since 2016, we have proven in over 200 projects across');
   });
 });