feat: add blocks showcase and restructure app

package.json

@@ -21,6 +21,7 @@
     "radix-ui": "^1.4.3",
     "react": "19.2.3",
     "react-dom": "19.2.3",
+    "recharts": "^2.15.4",
     "shiki": "^3.20.0",
     "tailwind-merge": "^2.6.0"
   },
@@ -31,6 +32,7 @@
     "@types/react-dom": "^19",
     "eslint": "^9",
     "eslint-config-next": "16.1.1",
+    "prettier-plugin-tailwindcss": "^0.7.2",
     "shadcn": "^3.6.2",
     "tailwindcss": "^4",
     "tw-animate-css": "^1.4.0",