Update Storybook configuration and readme

package.json

@@ -9,6 +9,8 @@
     "lint": "next lint",
     "postinstall": "npm rebuild lightningcss",
     "storybook": "storybook dev -p 6006",
+    "storybook:local": "cp .storybook/main.local.js .storybook/main.js && cp .storybook/preview.local.js .storybook/preview.js && storybook dev -p 6006",
+    "storybook:restore": "git checkout .storybook/main.js .storybook/preview.js",
     "build-storybook": "storybook build"
   },
   "dependencies": {
@@ -31,7 +33,7 @@
     "@vitest/browser": "^3.2.4",
     "@vitest/coverage-v8": "^3.2.4",
     "eslint": "^9",
-    "eslint-config-next": "15.2.4",
+    "eslint-config-next": "15.2.0",
     "eslint-plugin-storybook": "^9.1.2",
     "playwright": "^1.54.2",
     "postcss": "^8.5.6",