feat(www): introduce monorepo

This change brings Turborepo monorepo to independently handle the marketing website, the docs website and any other future use cases for mutli-platform support. They are using internal @katanemo package handlers for the design system and logic.

apps/docs/tsconfig.json

@@ -0,0 +1,20 @@
+{
+  "extends": "@katanemo/tsconfig/nextjs.json",
+  "compilerOptions": {
+    "jsx": "react-jsx",
+    "paths": {
+      "@/*": ["./src/*"],
+      "@katanemo/ui": ["../../packages/ui/src"]
+    }
+  },
+  "include": [
+    "next-env.d.ts",
+    "**/*.ts",
+    "**/*.tsx",
+    ".next/types/**/*.ts",
+    ".next/dev/types/**/*.ts",
+    "**/*.mts"
+  ],
+  "exclude": ["node_modules"]
+}
+