add styled-components

Author: koji

package.json

@@ -24,7 +24,8 @@
   "dependencies": {
     "nes.css": "^2.3.0",
     "react": "^18.2.0",
-    "react-dom": "^18.2.0"
+    "react-dom": "^18.2.0",
+    "styled-components": "^6.1.18"
   },
   "scripts": {
     "dev": "vite",
@@ -49,6 +50,7 @@
     "@storybook/test": "^8.5.6",
     "@types/react": "^18.3.3",
     "@types/react-dom": "^18.3.0",
+    "@types/styled-components": "^5.1.34",
     "@vitejs/plugin-react": "^4.3.1",
     "eslint": "^9.9.0",
     "eslint-plugin-react": "^7.34.1",