refactor: replace 'let' with 'const' for better variable scoping and immutability

eslint.config.ts

@@ -1,15 +1,23 @@
 import js from "@eslint/js";
+import pluginReact from "eslint-plugin-react";
+import pluginReactHooks from "eslint-plugin-react-hooks";
+import { defineConfig } from "eslint/config";
 import globals from "globals";
 import tseslint from "typescript-eslint";
-import pluginReact from "eslint-plugin-react";
-import { defineConfig } from "eslint/config";
 
 export default defineConfig([
   {
     files: ["**/*.{js,mjs,cjs,ts,mts,cts,jsx,tsx}"],
-    plugins: { js },
+    plugins: {
+      js,
+      "react-hooks": pluginReactHooks,
+    },
     extends: ["js/recommended"],
     languageOptions: { globals: globals.browser },
+    rules: {
+      "react-hooks/rules-of-hooks": "error",
+      "react-hooks/exhaustive-deps": "error",
+    },
   },
   tseslint.configs.recommended,
   pluginReact.configs.flat["jsx-runtime"],