Improve project structure.

New Project Structure:
  - Created reusable UI components (ServiceCard, AnimatedSection, SectionTitle)
  - Split large components into smaller, focused ones
  - Extracted shared hooks for common functionality
  - Organized constants into separate files

Key Improvements:
  - Hooks: useScrollNavigation, useScrollToSection, useCookieSettings
  - UI Components: Modular components for consistent styling and behavior
  - Constants: Centralized data management (ServicesData, NavigationData)
  - Component Split: Navbar, Hero, and Footer broken into logical sub-components

frontend/components/Navbar/NavLogo.tsx

@@ -0,0 +1,16 @@
+'use client';
+
+interface NavLogoProps {
+    onLogoClick: () => void;
+}
+
+export const NavLogo = ({ onLogoClick }: NavLogoProps) => {
+    return (
+        <button
+            onClick={onLogoClick}
+            className="text-xl font-bold cursor-pointer"
+        >
+            <span className="text-pink-600">R</span>hein Software
+        </button>
+    );
+};