feat: Implement PDF to Markdown conversion with a new UI built using Shadcn/UI and updated styling.

package.json

@@ -16,14 +16,19 @@
     "typecheck": "tsc --noEmit"
   },
   "dependencies": {
+    "@radix-ui/react-label": "^2.1.8",
+    "@radix-ui/react-slot": "^1.2.4",
+    "@radix-ui/react-tabs": "^1.1.13",
     "@t3-oss/env-nextjs": "^0.12.0",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "lucide-react": "^0.556.0",
     "next": "16.0.7",
+    "pdfjs-dist": "^5.4.449",
     "react": "19.2.1",
     "react-dom": "19.2.1",
     "tailwind-merge": "^3.4.0",
+    "tailwindcss-animate": "^1.0.7",
     "zod": "^3.24.2"
   },
   "devDependencies": {