feat: init web app.

package.json

@@ -0,0 +1,61 @@
+{
+  "name": "website",
+  "version": "1.1.0",
+  "private": true,
+  "scripts": {
+    "start": "kkt start",
+    "build": "kkt build"
+  },
+  "license": "MIT",
+  "dependencies": {
+    "@babel/runtime": "^7.18.9",
+    "@uiw/react-back-to-top": "^1.2.0",
+    "@uiw/react-github-corners": "^1.5.15",
+    "@uiw/react-markdown-editor": "^5.3.2",
+    "@uiw/react-markdown-preview": "^4.1.0",
+    "@wcj/dark-mode": "^1.0.15",
+    "css-tree": "^2.2.1",
+    "react": "^18.2.0",
+    "react-code-preview-layout": "^2.0.4",
+    "react-dom": "^18.2.0",
+    "react-hot-toast": "^2.3.0",
+    "react-router-dom": "^6.3.0",
+    "rehype-prism-plus": "^1.5.0",
+    "rehype-raw": "^6.1.1",
+    "rehype-stringify": "^9.0.3",
+    "remark-gfm": "^3.0.1",
+    "remark-parse": "^10.0.1",
+    "remark-rehype": "^10.1.0",
+    "styled-components": "^5.3.5",
+    "unified": "^10.1.2"
+  },
+  "devDependencies": {
+    "@kkt/less-modules": "^7.2.0",
+    "@kkt/raw-modules": "^7.2.0",
+    "@kkt/scope-plugin-options": "^7.2.0",
+    "@types/css-tree": "^1.0.7",
+    "@types/react": "^18.0.17",
+    "@types/react-dom": "^18.0.6",
+    "@types/styled-components": "^5.1.25",
+    "kkt": "^7.2.0",
+    "markdown-react-code-preview-loader": "^2.1.2"
+  },
+  "eslintConfig": {
+    "extends": [
+      "react-app",
+      "react-app/jest"
+    ]
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  }
+}