feat: implement Figlet, Pastel, and Unit tools with a unified layout

- Add Figlet text converter with font selection and history
- Add Pastel color palette generator and manipulation suite
- Add comprehensive Units converter with category-based logic
- Introduce AppShell with Sidebar and Header for navigation
- Modernize theme system with CSS variables and new animations
- Update project configuration and dependencies

package.json

@@ -9,20 +9,34 @@
     "lint": "next lint"
   },
   "dependencies": {
-    "framer-motion": "^11.11.17",
-    "next": "^16.0.1",
-    "react": "^19.0.0",
-    "react-dom": "^19.0.0"
+    "@tanstack/react-query": "^5.90.21",
+    "@valknarthing/pastel-wasm": "^0.1.0",
+    "clsx": "^2.1.1",
+    "cmdk": "^1.1.1",
+    "convert-units": "^2.3.4",
+    "figlet": "^1.10.0",
+    "framer-motion": "^12.34.3",
+    "fuse.js": "^7.1.0",
+    "html-to-image": "^1.11.13",
+    "lucide-react": "^0.575.0",
+    "next": "^16.1.6",
+    "react": "^19.2.4",
+    "react-colorful": "^5.6.1",
+    "react-dom": "^19.2.4",
+    "sonner": "^2.0.7",
+    "tailwind-merge": "^3.5.0",
+    "zustand": "^5.0.11"
   },
   "devDependencies": {
-    "@tailwindcss/postcss": "^4.1.17",
-    "@types/node": "^20",
-    "@types/react": "^19",
-    "@types/react-dom": "^19",
-    "eslint": "^9.39.1",
-    "eslint-config-next": "^16.0.1",
-    "postcss": "^8",
-    "tailwindcss": "^4.0.0",
-    "typescript": "^5"
+    "@tailwindcss/postcss": "^4.2.0",
+    "@types/figlet": "^1.7.0",
+    "@types/node": "^25.3.0",
+    "@types/react": "^19.2.14",
+    "@types/react-dom": "^19.2.3",
+    "eslint": "^10.0.1",
+    "eslint-config-next": "^16.1.6",
+    "postcss": "^8.5.6",
+    "tailwindcss": "^4.2.0",
+    "typescript": "^5.9.3"
   }
 }