fix(widget): restrict dynamic header to the updates files

widget/package.json

@@ -16,6 +16,9 @@
     "serve": "npx http-server ./dist/",
     "typecheck": "tsc --noEmit"
   },
+  "lint-staged": {
+    "*.{ts,tsx}": "eslint --fix -c \".eslintrc-staged.json\""
+  },
   "dependencies": {
     "@types/emoji-js": "^3.5.2",
     "autolinker": "^4.0.0",
@@ -33,9 +36,11 @@
     "@typescript-eslint/parser": "^7.15.0",
     "@vitejs/plugin-react": "^4.3.1",
     "eslint": "^8.57.0",
+    "eslint-plugin-header": "^3.1.1",
     "eslint-plugin-react": "^7.37.2",
     "eslint-plugin-react-hooks": "^4.6.2",
     "eslint-plugin-react-refresh": "^0.4.7",
+    "lint-staged": "^15.3.0",
     "sass": "^1.77.8",
     "typescript": "^5.2.2",
     "vite": "^5.3.4",