feat: add new components for navigation, contact, customer segments, hero section, and service overview

- Implement Navigation component for main navigation links.
- Create ContactSection for displaying contact information and a contact form.
- Add CustomerSegments to showcase target customer groups.
- Develop HeroSection for the landing page with a background image and call-to-action buttons.
- Introduce ServiceOverview to present available services with icons and descriptions.
- Create PageHero for consistent page headers with optional background images.
- Implement TariffTable for displaying internet and phone tariff plans.
- Add TeamGrid to showcase team members with images and roles.
- Create TrustSection to highlight company statistics.
- Implement ValueProposition to present company values with icons.
- Add reusable UI components: Badge, Button, Card, Container, and SectionHeading.
- Define constants for company information, services, and tariffs.
- Create utility function for class name management.
- Define TypeScript types for navigation links, team members, tariff plans, and service cards.
- Configure TypeScript settings for the project.

eslint.config.mjs

@@ -0,0 +1,18 @@
+import { defineConfig, globalIgnores } from "eslint/config";
+import nextVitals from "eslint-config-next/core-web-vitals";
+import nextTs from "eslint-config-next/typescript";
+
+const eslintConfig = defineConfig([
+  ...nextVitals,
+  ...nextTs,
+  // Override default ignores of eslint-config-next.
+  globalIgnores([
+    // Default ignores of eslint-config-next:
+    ".next/**",
+    "out/**",
+    "build/**",
+    "next-env.d.ts",
+  ]),
+]);
+
+export default eslintConfig;