chore: bump eslint to latest version 9.6.0, required config file chan…

…ge from .json to .mjs

eslint.config.mjs

@@ -0,0 +1,50 @@
+import prettier from "eslint-plugin-prettier";
+import globals from "globals";
+import babelParser from "@babel/eslint-parser";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import js from "@eslint/js";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+    baseDirectory: __dirname,
+    recommendedConfig: js.configs.recommended,
+    allConfig: js.configs.all
+});
+
+export default [...compat.extends("eslint:recommended", "prettier"), {
+    plugins: {
+        prettier,
+    },
+
+    languageOptions: {
+        globals: {
+            ...globals.browser,
+            ...globals.node,
+            ...globals.jest,
+            jQuery: true,
+            $: true,
+        },
+
+        parser: babelParser,
+        ecmaVersion: 2018,
+        sourceType: "module",
+    },
+
+    rules: {
+        "max-len": 0,
+        "linebreak-style": ["error", "unix"],
+        quotes: ["error", "single"],
+        semi: ["error", "never"],
+        "no-unused-vars": 1,
+        "no-prototype-builtins": 0,
+        "arrow-parens": ["warn", "as-needed"],
+
+        "prefer-const": [1, {
+            destructuring: "any",
+            ignoreReadBeforeAssign: false,
+        }],
+    },
+}];