feat: Integrate shadcn/ui and update styling

This commit introduces shadcn/ui for enhanced component management and updates global styling. It also adds new dependencies for UI components and typography, improving the overall look and feel of the application. Key changes include:

- Integration of shadcn/ui for component development.
- Application of Geist Variable font and updated CSS variables for theming.
- Inclusion of `embla-carousel` for improved testimonial display.
- Refinement of `index.css` for better styling consistency.
- Updated `tsconfig.json` and `vite.config.ts` for alias configurations.

package.json

@@ -11,11 +11,16 @@
     "lint": "tsc --noEmit"
   },
   "dependencies": {
+    "@base-ui/react": "^1.4.1",
+    "@fontsource-variable/geist": "^5.2.8",
     "@google/genai": "^1.29.0",
     "@tailwindcss/vite": "^4.1.14",
     "@vitejs/plugin-react": "^5.0.4",
+    "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "dotenv": "^17.2.3",
+    "embla-carousel-autoplay": "^8.6.0",
+    "embla-carousel-react": "^8.6.0",
     "express": "^4.21.2",
     "firebase": "^12.12.1",
     "lucide-react": "^0.546.0",
@@ -24,7 +29,9 @@
     "react-dom": "^19.0.0",
     "react-dropzone": "^15.0.0",
     "recharts": "^3.8.1",
+    "shadcn": "^4.7.0",
     "tailwind-merge": "^3.5.0",
+    "tw-animate-css": "^1.4.0",
     "vite": "^6.2.0"
   },
   "devDependencies": {