update eslint

Author: NuclearPhoenixx

.eslintrc.json

@@ -0,0 +1,46 @@
+import typescriptEslint from '@typescript-eslint/eslint-plugin';
+import globals from 'globals';
+import tsParser from '@typescript-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', 'plugin:@typescript-eslint/recommended'),
+    {
+        plugins: {
+            '@typescript-eslint': typescriptEslint,
+        },
+
+        languageOptions: {
+            globals: {
+                ...globals.browser,
+                ...Object.fromEntries(Object.entries(globals.serviceworker).map(([key]) => [key, 'off'])),
+            },
+
+            parser: tsParser,
+            ecmaVersion: 13,
+            sourceType: 'module',
+        },
+
+        rules: {
+            eqeqeq: 'error',
+            quotes: ['warn', 'single'],
+            'no-unused-private-class-members': 'warn',
+            'no-unreachable-loop': 'error',
+            'no-template-curly-in-string': 'error',
+            'no-self-compare': 'error',
+            'no-duplicate-imports': 'error',
+            'no-await-in-loop': 'warn',
+        },
+    },
+];